Super Hamster stands with a mass of 1.5 kg and saves the Earth by moving a comet which has a mass of 8.2 x 106 kg. The comet starts at rest but is accelerated to 9.3 m/s in the 5.1 s it takes Super Hamster to push it away. How fast will Super Hamster be traveling at the end of that time? Answer: -21700 Check

Q: CAR A 1. Greater force is needed to stop car because it has higher inertia. 2. Bodies with higher…

A:

Q: A father of 75-kg took his daughter of 35-kg to ice skating. They push off against one another…

A: Let us consider a father who took his daughter to ice skating. Consider a mass of father be (mf) in…

Q: A body of mass 2 kg is at rst. Two torced of 6N on the body at right angles to each other what is…

A:

Q: The 4 model rockets just have their engine turned off when they are at the same height. All the…

A: Given: A. speed = 30m/s, mass = 700g B. speed = 40m/s, mass = 500g C. speed = 20m/s, mass = 600g D.…

Q: m = 8 kg μs = 0.5 μk = 0.4 Calculate the maximum mass M that allows the blocks to remain stationary.…

A: Here we shall assume that the mass M is hanging, and the weight due to this hanging mass M is the…

Q: A ball is dropped from a building 100 m high. If the mass of the ball is 10 grams, after what time…

A: The equation of motion can be used to find the unknown value of time and they can be given as,…

Q: A glider strikes a 0.075-kg block so that its velocity changes by +35 m/s in 0.070 s. With what…

A: Correct option is (B) i e  average force is 37.5 N .

Q: In a slap shot in hockey, the stick and puck are only in contact for 0.030 s. During this time, the…

A:

Q: In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and…

A: Given:  initial velocity, u = 0 m/s  final velocity, v = 45 m/s  time, t = 7 s  mass, m = 5.5 x 103…

Q: At a time when mining asteroids has become feasible, astronauts have connected a line between their…

A: Using Newton's law of motion, the expression for find acceleration of the tug is aT=FmT Substitute…

Q: Margie and Bill, both with brand new roller blades, are at rest facing each other in the parking…

A:

Q: A 60 kg person walking at 1 m/sec (~2mph) bumps into a wall and stops in a distance of 2.5cm in…

A: . The resultant force applied is equal to the rate of change of momentum and it is given by the…

Q: An empty coal car of mass 5000 kg starts from rest under an applied force of magnitude 1000 N. At…

A:

Q: Two ice skaters stand together They push off and travel directly away from each other the boy with…

A:

Q: In a Subaru TV commercial, a dog is driving a car of total MASS 1,812 kg.  Suddenly a person runs…

A:

Q: You are wearing your rocket pack (m = 73 kg) that accelerates upwards at a constant 10.1 m/s. While…

A: Freefall is defined as the downward movement of the body under gravity.   Acceleration of rocket=…

Q: Ken and Barbie are skating together on a rink at 3.00 m/

A:

Q: A teenager is pushing a cart.  There is no friction between the cart and the ground. Mass of the…

A: (1) From Newton’s 2nd law, Here, m and a represent the cart's mass and acceleration of the cart ,…

Q: The two masses in the figure are released from rest. What is the speed (in m/s) of the masses after…

A: Mass of each block are 3 kg and 2 kg respectively Acceleration due to gravity (g)=9.8 m/s2 Distance…

Q: A 0.2-kg baseball traveling to the left at 20 m/s is driven in the opposite direction at 35 m/s when…

A:

Q: A 68.5-kg astronaut is doing a repair in space on the orbiting space station. She throws a 2.25-kg…

A: From conservation of momentum,   Momentum of the astronaut + Momentum of the tool= 0 If, M=mass of…

Q: Q15. An astronaut is floating in space near her shuttle when she realizes that the cord that is…

A: total mass = 91 kgmass of metal tool = 1 kgvelocity with which the metal tool is thrown = -9…

Q: Squids are the fastest marine invertebrates, using a powerful set of muscles to take in and then…

A: The mass of the squids is, ms=1.40 kg   The mass of the water is, mw=0.105 kg   The velocity of the…

Q: The velocities and masses of four objects are shown. Which object has the greatest inertia? D 5kg…

A: Answer:-  D ( mass = 10 kg and V = 0 m/s) Because The tendency of an object to change in its state…

Q: A 747 jetliner lands and begins to slow to a stop as it moves along the runway. If its mass is…

A: case 1the deceleration is given by

Q: Two ice skaters, initially at rest, push each other so that they move in opposite directions. One…

A:

Q: The two masses in the figure are released from rest. After the 5.0 kg mass has fallen 1.5 m, it is…

A:

Q: A lump of clay of mass 0.21 kg is dropped from a height of 5.5 m. The clay comes to a full stop…

A: mass of clay is m = 0.21 Kg height from which clay was dropped is h = 5.5 m time taken by the clay…

Q: A block having a mass of 0.7 kg is at rest near the edge of a frictionless table 1.1 m high. A…

A:

Q: 13. A bullet (mass 8 grams) is fired into a suspended block of wood (4 kg). Initially the wood is…

A:

Q: Your mass is 73.3 kg, and the sled s mass is 10.1 kg. You start at rest, and then you jump off the…

A: Given  Mass of man (M) = 73.3 kg Mass of sled (m) = 10.1 kg speed of sled when man jumps from it v…

Q: A 667 kg pickup truck is travelling at 14.4 m/s. The driver sees a squirrel run across the road and…

A: Given:  The initial speed of the pick-up is 14.4 ms. The mass of the pick-up is 667 kg. The force…

Q: 76. Two cars, one of mass 500kg and one of mass 250kg. collide head on. The car with more mass…

A: Two cars, one of mass 500 kg and one of mass 250 kg, collide…

Q: Suppose Batman, starting from rest in the figure below, collides with the Joker at a height of 1.2 m…

A: Given: mass of batman Mb = 80 kg mass of Joker MJ = 70 kg starting height of batman h =5m

Q: Squids are the fastest marine invertebrates, using a powerful set of muscles to take in and then…

A: Given: Mass of squid, msquid=1.90 kg Mass of water, mwater=0.115 kg The initial velocity of squid…

Q: #40 White BALL'S MASS = 0.45 ca %3D INITIALLY travels AT 3.5 m S. STRIKES A BLACK INITIALLY AT REST.…

A:

Q: A lump of clay of mass 0.21 kg is dropped from a height of 7.1 m. The clay comes to a full stop…

A:

Q: A capsule (mass=8 x10² kg) and booster (mass = 3 x10³ kg) are traveling at 1.8 x103 m/s when…

A: Given Information:- Mass of the capsule is mc=8×102 kg. Mass of the booster is mb=3×103 Kg. Initial…

Q: A 81.1 kg blue bumper car and rider are traveling at 8.1 m/s. They rear end a red bumper car of mass…

A: Mass of the blue car, mb = 81.1 kgMass of the red car, mr = 71.3 kgInitial velocity of blue car, ub…

Q: In a slap shot in hockey, the stick and puck are only in contact for 0.030 s. During this time, the…

A:

Q: What is the difference between kg‑mass and kg‑force?

A:

Q: Question 3: There is an air hockey table in the treehouse! Find the x and y components of the final…

A:

Q: A 76.1 kg astronaut of holding a 12.3 kg tool pack while drifting at 10.6 m/s to the right. She…

A:

Q: In a slap shot in hockey, the stick and puck are only in contact for 0.030s. During this time, the…

A:

Q: Squids are the fastest marine invertebrates, using a powerful set of muscles to take in and then…

A: Apply the momentum conservation equation. Here, ms represents the mass of squid, mw represents the…

Q: A 68.5-kg astronaut is doing a repair in space on the orbiting space station. She throws a 2.25-kg…

A:

Q: Leo, who has a mass of 72.0 kg, is riding his rollerblades when he collided with the wall. The wall…

A:

Q: A 12000 kg railroad car travelling at 10 m/s strikes a second car and comes to rest in 2 seconds.…

A: Given in question: Mass of the car(m) = 12000 Kg                                 Initial speed(u) =…

Q: Your mass is 92.6 kg, and the sled s mass is 17.1 kg. You start at rest, and then you jump off the…

A:

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.