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- When a spacecraft collides with a planet, it is not necessary for them to actually touch each other, but when a car collides with a truck, the car and the truck must touch. Explain the difference between these two types of collisions.From the SUV-compact car example, suppose the same two vehicles are both traveling eastward, the compact car leading the SUV. The driver of the compact car slams on the brakes suddenly, slowing the vehicle to 6.00 m/s. If the SUV traveling at 18.0 m/s crashes into the compact car, find the speed of the system right after the collision, assuming the two vehicles become entangled, Answer: The speed of the system is ___ m/s.A. If you catch the ball, with what speed do you and the ball move afterwards? B. If the ball hits you and bounces off your chest so that afterward it is moving horizontally at 8.25 m/s in the opposite direction, what is your speed after the collision?
- A collision analyst applies physics principles to reconstruct what happened at automobile crashes. Assume that during a head-on crash between two cars, the cars came to a stop, and a large component of a plastic bumper broke off one car and skidded along the highway shoulder leaving skid marks. What information could the analyst gather from the bumper component and from the skid marks it produced? What measurements would be needed to estimate the speed of the cars just before the collision, and how would they be used?A student throws a 110 g snowball at 8.5 m/s at the side of the schoolhouse, where it hits and sticks. ▼ Part A What is the magnitude of the average force on the wall if the duration of the collision is 0.19 s? Express your answer with the appropriate units. F=-3.68 Submit HA Provide Feedback N ? Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Next >A 0.450-kg hammer is moving horizontally at 7.00 m/s when it strikes a nail and comes to rest after driving the nail 1.00 cm into a board. Assume constant acceleration of the hammer-nail pair.a. Calculate the duration of the impact.b. What was the average force exerted on the nail?
- 8. A friend throws a basketball to you as you are standing on a frictionless patch of ice. To make sure you gain as much speed as possible you decide to: * Catch the basketball and drop it Catch the basketball and hold onto it. Catch the basketball and throw it back towards your friend. Catch the basketball and throw it the same direction it was moving before you caught it. O Duck and don't allow the basketball to contact you at all.Ball Y that is at rest. Ball X moving with v strikes Y with speed v. What is a possible outcome of the collision? * V. Y 후 호 '후후 호호 '후후 A. stationary В. X C. D. X Y X Y A Other:Amswer both parts or none Part A - A ball is thrown straight down with an initial speed of 2.4 m/s from a height of 75 m. What is the position of the ball after 2.6 s, in meters? Use g = 10 m/s2. Part B - Two big bugs, Buzz and Crunchy each of mass 0.60 kg, are siting on a spinning disk on a horizontal plane. Buzz is sitting halfway and Crunchy is sitting at the outer edge as shown. The radius of the disk is 4.3 m and it spins with an angular speed of 90 degrees/second. What is the magnitude of the net force on Crunchy, in Newtons?
- a)If Olaf catches the ball, with what speed vf do Olaf and the ball move afterward? Express your answer numerically in meters per second. b) If the ball hits Olaf and bounces off his chest horizontally at 8.30 m/sm/s in the opposite direction, what is his speed vf after the collision? Express your answer numerically in meters per second.The three identical 2.5 Ib blocks slide on the horizontal smooth surface. Initially block A is moving to the right at 9 ft/sec while B and C are at rest. Determine the velocity of blocks after (a) first collision when A collides with B and move together to right. (b) second collision when A and B collide with C move to right. 9 fils B CA 191.5-kg astronaut and equipment move with a velocity of 2.03 m/s toward an orbiting spacecraft. How long will the astronaut need to fire a 100.0-N rocket backpack to stop the motion relative to the spacecraft? %3D