A 30-kg box, initially at rest, is pulled 10 meters along a warehouse floor, by a 200-N pulling force that makes an angle, =20°, with the horizontal, as shown in the diagram below. The coefficient of kinetic friction between the box and the floor is =0.6. 1.How much work is done a) by the pulling force and b) by the friction force?
2.What is the final kinetic energy of the box?
3.What is the final velocity of the box?

Explanation:

thx for points the answer is f forgive me if not sryy

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.