PHC6Tests - 2004 Test Physics Honors Chapter 6 Test:...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 2004 Test Physics Honors Chapter 6 Test: Momentum and Impulse Form 1 p mv = v v p F t ∆ = ∆ v v f N F F μ = cos W Fd θ = 1f 2f 90 θ θ- = o sometimes 1o 1f 2o 2f v v v v + = + v v v v sometimes 1f 2f v v = v v sometimes 2 1 2 K mv = g U mgh = 2 1 Δ 2 e U k x = sin sin sin a b c a b c θ θ θ = = Law of Sines 2 2 2 2 cos c a b ab θ = +- Law of Cosines A 0.1 kg dart is thrown at a 2.0 kg block of wood that rests on a flat, rough surface. The initial velocity of the dart is 30 m/s [W]. The dart sticks in the block, and the dart and block together slide a distance of 50 cm before coming to rest. 1) If the dart accelerates for 0.015 s after it strikes the block, what average force acts on the dart? 2) What is the coefficient of kinetic friction between the block and the surface? A 0.20-kg ball is sliding on a frictionless, horizontal surface with a velocity of 2.5 m/s [S] when it elastically collides with a 0.20-kg ball that is at rest. After the collision, one ball is moving at 2.25 m/s. 3) What is the velocity of the other ball after the collision? Superman (mass m = 125 kg) is flying north at 10.0 m/s. Lois Lane (mass m = 50 kg) is falling from the top of a tall building. Superman catches Lois when she has a speed of 40 m/s. 4) What is Superman’s velocity just after he catches Lois? A 75-g rubber ball moving north at 8 m/s strikes a 50-g rubber ball moving south at 5 m/s. 5) After the collision, what is the maximum velocity of the 50-g ball? 6) If after the collision the 75-g ball comes to rest, what impulse acts on the 50-g ball? 7) If after the collision the 75-g ball comes to rest, what is the final velocity of the 50-g ball? 8) What is the maximum amount of heat and sound energy that can be produced by this collision? A 10-g block sliding due west at 2.0 m/s collides with a stationary 8.0-g block on a frictionless surface. The two- dimensional collision converts 20% of the 10-g block’s energy into heat and sound. After the collision, the 10-g block is sliding at 1.50 m/s. 9) What is the final velocity of the 8-g block? 2005 Test Physics Honors Chapter 6 Test: Momentum and Impulse version 1 sometimes sometimes sometimes Law of Sines Law of Cosines A 0.1 kg dart is thrown at a dartboard with an initial velocity of 10 m/s [W]. It accelerates for 0.015 s as it comes to a stop in the dartboard. 1) What impulse acts on the dart? A 0.20-kg ball is sliding on a frictionless, horizontal surface with a velocity of 2.5 m/s [S] when it elastically collides with a 0.20- kg ball that is at rest. After the collision, one ball is moving at 2.15 m/s in a generally southeast direction....
View Full Document

This note was uploaded on 08/29/2010 for the course PHYS 38234 taught by Professor Ramesh during the Spring '09 term at Berkeley.

Page1 / 8

PHC6Tests - 2004 Test Physics Honors Chapter 6 Test:...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online