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FOS4 – Practice Problems – Momentum and Impulse – Solutions 1) A 2.5 kg ball strikes a wall with a velocity of 8.5 m/s to the left. The ball bounces off with a velocity of
tub’s momentum and velocity? Answer using both qualitative and quantitative reasoning (m 1 v 1 = m 2 v 2; call m 1 =5, m 2 =10, v 1 =2; solving for v 2 =1; the momentum of the system must be conserved, as there are no external forces being applied; therefore, the velocity of the tub must decrease.
Physics 1120: Momentum and Impulse Solutions 1. The diagrams below are graphs of Force in kiloNewtons versus time in milliseconds for the motion of a 5kg block moving to the right at 4.0 m/s. (a) What is the magnitude and direction of the impulse acting on the block in each case?
A pitcher claims he can throw a baseball with as much momentum as a 0.001kg bullet moving with a speed of 1500 m/s. If a baseball has a mass of 0.15kg, how fast must he throw the ball?
Note: To stop the vehicle that has momentum, the clay needs momentum of the same magnitude to make car’s momentum zero. Use the Law of Conservation of Momentum (𝑷 𝒇 =𝑷 𝒊) to solve for the clay’s velocity 𝑃 𝑓 =𝑃 𝑖 𝑚 𝑣 =𝑚 𝑣 𝑣 𝑓 = 𝑚 𝑚 (𝑣 )=
Questions on Momentum MS. 1. Momentum Use of . p = m. υ (1) Total momentum = 0.32 kg m s –1. or N s (1) 2 . Velocity Use of conservation of momentum (1) 0.062 m s –1 [Allow e.c.f. from wrong first answer] (1) East/in same direction as B moved originally (1) 3 [Only award last mark if momenta subtracted in first part] [5] 2. 30 m ÷ (5 × 0 ...
Practice with Conservation of Momentum - Answers Conceptual Questions 1. Why is momentum conserved for ALL collision, regardless of whether they are elastic or not? Newton’s 3rd Law says that each object feels the same force, but in opposite directions. By extension, they