e figure shows three balls of clay moving on a frictionless horizontal surface just before a collision. The collide simultaneously and stick together. Find the speed and direction of the blob of clay after the sion. Draw the blob after the collision and show its velocity vector. 40 g 45° 4.0 m/s 3.0 m/s 30 g 2.0 m/s ) 20 g

A block of mass m1 = 16 kg slides along a horizontal surface (with friction, μk = 0.21) a distance d = 2.25 m before striking a second block of mass m2 = 9.75 kg. The first block has an initial velocity of v = 7.25 m/s. A: Assuming that block one stops after it collides with block two, what is block two's velocity after impact in m/s?  B: How far does block two travel, d2 in meters, before coming to rest after the collision?

A 3.4 kg block of wood sits on a frictionless table. A 3.0 g bullet, fired horizontally at a speed of 480 m/s, goes completely through the block, emerging at a speed of 250 m/s. Part A What is the speed of the block immediately after the bullet exits? Express your answer with the appropriate units. V= Value Submit μA Provide Feedback Request Answer Units ? 208

A 1.25 kg hockey puck slides on a horizontal, frictionless surface at 3.0 m/s when it is struck by a 0.050 kg bullet traveling perpendicularly to the puck at 180 m/s. The bullet becomes wedged inside the puck. The sketch shows the view from above. After the collision, the speed of the composite puck/bullet object is_____m/s. O A

At one particular moment, a 19.0 kg toboggan is moving over a horizontal surface of snow at 4.60 m/s. After 7.50 s have elapsed, the toboggan stops. Use a momentum approach to find the magnitude of the average friction force (in N) acting on the toboggan while it was moving. N

Why is the selected answer wrong? What is the correct answer?

At an amusement park, Keenan is in a 96.0 kg bumper car moving to the right at a speed of 3.50 m/s. He collides with his friends who are in a 135 kg bumper that is at rest. Keenan bounces backward at a speed of 1.25 m/s.  a. What is the new velocity (magnitude and direction) of his friends?  b. Calculate if kinetic energy is conserved during this collision.

Ⓒ Macmillan Learning Two particles approach each other with equal and opposite speed, v. The mass of one particle is m, and the mass of the other particle is nm, where n is just a constant factor. Snapshots of the system before, during, and after the elastic collision are shown. m V Before V What is the value of n? nm Collision V m,final m n = After the collision, the first particle moves in the exact opposite direction with speed 2.40v, and the speed of the second particle, Unm, final, is unknown. 68 After Incorrect nm nm,final

microblology textb. PHY166_onlıne Jab. Pinterest Word sdev E Reading li Constants An atomic nucleus at rest decays radioactively into an alpha particle and a different nucleus. Part A What will be the speed of this recoiling nucleus if the speed of the alpha particle is 2.2x105 m/s ? Assume the recoiling nucleus has a mass 57 times greater than that of the alpha particle. Express your answer to two significant figures and include the appropriate units. HÁ Vnucleus = Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Provide Feedback Next > P Pearson Copyright © 2021 Pearson Education Inc. All rights reserved. I Terms of Use | Privacy Policy | Permisstons | Contact Us | V0 3:44 acer

A 75.0 kg ice skater moving at 10.5 m/s crashes into a stationary skater of equal mass. After the collision, the two skaters move as a unit at 5.25 m/s. If the impact time is 0.100 s, what are the magnitudes of the average forces experienced by each skater during the collision? Force experienced by moving skater  N Force experienced by stationary skater  N Suppose the average force a skater can experience without breaking a bone is 4500 N. Does a bone break? Yes or NO