Momentum: Example by Jared Rovny, PhD

Name: Momentum: Example
Uploaded: 2016-12-09
Duration: 6 min 43 s
Description: The lecture Momentum: Example by Jared Rovny, PhD is from the course Momentum.

About the Lecture

The lecture Momentum: Example by Jared Rovny, PhD is from the course Momentum.

Included Quiz Questions

The momentum of a car traveling in a straight line at 20 m/s is 24,500 kg.m/s. What is the car’s mass?

1225kg
12.25kg
122.5kg
125kg
1250kg

An 8-kilogram bowling ball bounces off a wall. The initial and final velocity vector of the bowling ball make an angle of θ = 30° with the wall and the initial and final speed of the bowling ball is 10m/s. What is the magnitude of the impulse exerted by the wall on the bowling ball? ( Note: sin(30°) = 1/2 )

80 kg.m/s
40 kg.m/s
160 kg.m/s
0 kg.m/s
20 kg.m/s

A pitcher throws a baseball in a straight line. If the baseballs momentum is 2.1 kg.m/s and its mass is 0.14 kg, what is the speed of the baseball?

15m/s
10m/s
20m/s
3m/s
12m/s

An 8-kilogram bowling ball bounces off a wall. The initial and final velocity vector of the bowling ball make an angle of θ = 30° with the wall and the initial and final speed of the bowling ball is 10m/s. What is the magnitude of the average force exerted by the wall on the bowling ball if the collision time is Δt = 0.1 s ? ( Note: sin(30°) = 1/2 )