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In a shipping company distribution center, an open cart of mass 50.0 $\mathrm{kg}$ is rolling to the leftat a speed of 5.00 $\mathrm{m} / \mathrm{s}(\text { Fig } .8 .46)$ . You can ignore friction between the cart and the floor. A 15.0 $\mathrm{kg}$ package slides down a chute that is inclined at $37^{\circ}$ from the horizontal and leaves the end of the chute with a speed of 3.00 $\mathrm{m} / \mathrm{s}$ .The package lands in the cart and they roll off together. If the lower end of the chute is a vertical distance of 4.00 $\mathrm{m}$ above the bottom of the cart, what are (a) the speed of the package just before it lands in the cart and (b) the final speed of the cart?

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(a) $v_{A 1}=9.35 \mathrm{m} / \mathrm{s}$(b) $v_{2}=3.29 \mathrm{m} / \mathrm{s}$ to the left.

Physics 101 Mechanics

Chapter 8

Momentum, Impulse, and Collisions

Moment, Impulse, and Collisions

Cornell University

Rutgers, The State University of New Jersey

Simon Fraser University

University of Winnipeg

Lectures

04:30

In classical mechanics, impulse is the integral of a force, F, over the time interval, t, for which it acts. In the case of a constant force, the resulting change in momentum is equal to the force itself, and the impulse is the change in momentum divided by the time during which the force acts. Impulse applied to an object produces an equivalent force to that of the object's mass multiplied by its velocity. In an inertial reference frame, an object that has no net force on it will continue at a constant velocity forever. In classical mechanics, the change in an object's motion, due to a force applied, is called its acceleration. The SI unit of measure for impulse is the newton second.

03:30

In physics, impulse is the integral of a force, F, over the time interval, t, for which it acts. Given a force, F, applied for a time, t, the resulting change in momentum, p, is equal to the impulse, I. Impulse applied to a mass, m, is also equal to the change in the object's kinetic energy, T, as a result of the force acting on it.

06:21

In a shipping company dist…

04:47

03:24

06:36

08:23

8.87 CP In shipping compan…

05:27

A $60.0-\mathrm{kg}$ perso…

03:25

A $60.0$ -kg person runnin…

07:10

A 5.00 -kg package slides …

02:37

Review problem. A 60.0 -kg…

03:37

A block of mass $M_{1}=0.6…

03:44

A cart, weighing $24.5 \ma…

18:40

A 5.00-kg package slides 2…

03:45

A 5.00-kg package slides 1…

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