10. A 0.09 kg snowball traveling at 6.4 m/s has a head-on collision with a 0.12 kg snowball of traveling in the opposite direction at 5.1 m/s. The snowballs stick together after the collision. What is their common speed immediately after the collision assuming no mass is lost in the collision? Choose the closest answer. A. zero O B. 3.5 m/s O C. 6.1 m/s O D. 8.5 m/s O E. 2.4 m/s O F. 3.9 m/s O G. 0.17 m/s OH. 14 m/s 1. 22 m/s

10. A 0.09 kg snowball traveling at 6.4 m/s has a head-on collision with a 0.12 kg snowball of traveling in the opposite direction at 5.1 m/s. The snowballs stick together after the collision. What is their common speed immediately after the collision assuming no mass is lost in the collision? Choose the closest answer. A. zero O B. 3.5 m/s O C. 6.1 m/s O D. 8.5 m/s O E. 2.4 m/s O F. 3.9 m/s O G. 0.17 m/s OH. 14 m/s 1. 22 m/s

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter3: Energy And Conservation Laws

Section: Chapter Questions

Problem 6P: A basketball with a mass of 0.62 kg falls vertically to the floor where it hits with a speed of 6...

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A family is skating. The father (75 kg) skates at 8.2 m/s and collides and sticks to the mother (50 kg), who was initially moving at 3.3 m/s and at 45 with respect to the father’s velocity. The pair then collides with their daughter (30 kg), who was stationary, and the three slide off together. What is their final velocity?
a man of mass m1 = 70.0 kg is skating at v1 = 8.00 m/s behind his wife of mass m2 = 50.0 kg, who is skating at v2 = 4.00 m/s. Instead of passing her, he inadvertently collides with her. He grabs her around the waist, and they maintain their balance. (a) Sketch the problem with before-and-after diagrams, representing the skaters as blocks. (b) Is the collision best described as elastic, inelastic, or perfectly inelastic? Why? (c) Write the general equation for conservation of momentum in terms of m1, v1, m2, v2, and final velocity vf. (d) Solve the momentum equation for vf. (e) Substitute values, obtaining the numerical value for vf, their speed after the collision.
A basketball with a mass of 0.62 kg falls vertically to the floor where it hits with a speed of 6 m/s. (We take the positive direction to be upward here.) The ball rebounds, leaving the floor with a speed of 4.5 m/s. (a) What impulse acts on the ball during its collision with the floor? (b) If the ball is in contact with the floor for 0.04 s, what is the average force of the ball on the floor?
A pitcher claims he can throw a 0.145-kg baseball with as much momentum as a 3.00-kg bullet moving with a speed of 1.50 103 m/s (a) What must the baseballs speed be if the pitchers claim is valid? (b) Which has greater kinetic energy, the ball or the bullet?
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