Question

Starting from rest, you drag a 30.0 kg box as shown below. Your force is 200.0...

Starting from rest, you drag a 30.0 kg box as shown below. Your force is 200.0 N while friction applies a 185 N force.

What is the box's speed if you drag it across the ground for 5.00 meters?
______________ m/s

With a starting velocity of 2 m/s to the right, you drag a 30.0 kg box for 4 meters, as shown below. Your force is 200.0 N and the box's final velocity is 1.15 m/s to the right.

How much work did friction do?
______________ J

What is the force of friction? Include direction, by which we mean include a minus sign if the force is to the left.
______________ N

Starting from rest, Chris and Hank pull on a box in opposite directions, as shown. Chris pulls with 220.0 N, Hank pulls with a force of 150 N, and friction is 50 N to the right.

What will be the box's kinetic energy after it moves 3.00 meters to the left?
______________ J

Fpull​=150NFpull,x​=120NFpull,y​=90NFgravity​=300NFfloor​=210NFfriction​=100N​

What is the work done by friction?
______________ J

What is the work done by gravity?
______________ J

What is the work done by the floor?
______________ J

What is the work done by Lucy?
______________ J

What will be the box's kinetic energy?
______________ J

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