I is Fat
Get me a little Mo of that Mentum
Extreme Car Crash Compilation
100
A baseball catcher catches a ball by bringing in his hands to receive the ball as it hits his hands. This results in a lesser impact force because:
A. lesser change in momentum
B. lesser change in velocity
C. greater change in momentum
D. increase in time
D. increase in time.
100
Mr. Chong is skiing down Wolverine at Keystone when he collides with a 25 kg child who was sitting down (not his fault, kid should have been looking). Mr. Chong weighs 60 kg and was skiing with 5 kg skiis, skiing down at 12 m/s. After the collision, Mr. Chong and his skiis travel at 6 m/s forwards. How fast does the child fly after the collision, and in which direction?
15.6 m/s Forward
100
What two things must be true for momentum to be conserved in a system?
The masses of all objects must stay the same.
No outside forces allowed.
200
A 5.8*10^7 kg planet is at rest when your mother (large) suddenly appears in the sky. Her gravity exerts an unknown force on the planet for 20 seconds until the planets Space Force is able to shoot her down with a laser, but not before the planet is accelerated to 3,500 m/s. How much force did her gravity exert on the planet?
F*20=5.8E7*3500
1.05E10 N
200
Draw Homer Simpson getting hit by the wrecking ball, and write the correct collision equation that shows the conservation of momentum.
m_Av_(Ai)+m_Bv_(Bi)=(m_A+m_B)v_f
200
A 45,000 kg Truck collides with a tiny, very cute, adorable, 5 kg Golden Doodle puppy. Which object experiences a greater Impulse (Change in Momentum)?
The same Impulse! The change in momentum is the same for both objects!
300
The graph shows the Force over Time of my fists on my 45 kg brother after he uses 3 Red Shells on me (I was in first place and mom doesn't love him)
If he was initially standing still, what is his final velocity after the 5 seconds?
I=2*3 + 1/2*2*2=8
8=45*v_f
v_f=0.177m/s
300
Mr. Chong did not grow up with fireworks. On 4th of July, instead of lighting it and running away, he holds it parallel to the ground and aims it at his house. Mr. Chong weighs 60 kg and the firework weighs 0.2 kg. If Mr. Chong recoils back 0.04 m/s, how fast does the firework travel?
12 m/s
300
A ping pong ball is bounced off a ping pong paddle. Can the change in velocity of the ball be greater than the change in velocity of the paddle?
Yes! It has to in order to return back to the opponent!