# A zero b two c eight d four 25 a moderate force will

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a.zerob.twoc.eightd.four25.A moderate force will break an egg. However, an egg dropped on the road usually breaks,while one dropped on the grass usually doesn’t break. This is because for the egg dropped onthe grass:a.the change in momentum is greater.b.the change in momentum is less.c.the time interval for stopping is greater.d.the time interval for stopping is less.26.A 70-kg man is standing in a 20-kg boat. The man steps to the right thinking he is steppingout onto the dock. However, the following will actually happen (ignore the friction of thewateror air on the boat or the man):a.The man only moves a short distance to the right while the boat moves a largerdistance to the left.b.The man actually stays still while the boat moves toward the left.c.The boat doesn’t move and the man moves to the right.d.None of the above.27.A lump of clay is thrown at a wall. A rubber ball of identical mass is thrown with the samespeed toward the same wall. Which statement is true?a.The clay experiences a greater change in momentum than the ball.b.The ball experiences a greater change in momentum than the clay.c.The clay and the ball experience the same change in momentum.d.It is not possible to know which object has the greater change in momentum.82
Chapter 6, Momentum and Collisions28.A high-diver of mass 70 kg jumps off a board 10 m above the water. If, 1.0 s after enteringthe water his downward motion is stopped, what average upward force did the water exert?a.100 Nb.686 Nc.980 Nd.No answer is correct.29.Object 1 has twice the mass of Object 2.Both objects have the same kinetic energy.Whichof the following statements is true?a.Both objects can have the same magnitude of momentum.b.Object 1 has a momentum of greater magnitude than Object 2.c.The magnitude of the momentum of Object 2 is four times that of Object 1.d.All the statements are false.30.Object 1 has twice the mass of Object 2.Each of the objects has the same magnitude ofmomentum.Which of the following statements is true?a.Both objects can have the same kinetic energy.b.One object has 0.707 times the kinetic energy of the other.c.One object has twice the kinetic energy of the other.d.One object has 4 times the kinetic energy of the other.31.Three satellites are launched into space connected together.Once in deep space, an explosivecharge separates the three satellites and they move apart.The satellites each have differentmasses with m1< m2< m3.Which of the following statements is always true?a.The one with mass m1receives the greatest impulse.b.The one with mass m3receives the greatest impulse.c.The all must receive equal impulses.d.Although one or more of the above statements could be true in special cases, theyarenot always true.

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Test, Velocity, d, partner, d Greenwich Civil Time,