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Please provide detailed solution A boy pulls a 11.0-kg box with a 100-N force at

ID: 1428264 • Letter: P

Question

Please provide detailed solution
A boy pulls a 11.0-kg box with a 100-N force at 32° above a horizontal surface. If the coefficient of kinetic friction between the box and the horizontal surface is is 0.15 and the box is pulled a distance of 34.0 m, what is the net work done on the box?
Please provide detailed solution
A boy pulls a 11.0-kg box with a 100-N force at 32° above a horizontal surface. If the coefficient of kinetic friction between the box and the horizontal surface is is 0.15 and the box is pulled a distance of 34.0 m, what is the net work done on the box?

A boy pulls a 11.0-kg box with a 100-N force at 32° above a horizontal surface. If the coefficient of kinetic friction between the box and the horizontal surface is is 0.15 and the box is pulled a distance of 34.0 m, what is the net work done on the box?

Explanation / Answer

Here ,

mass of block , m = 11 Kg

Force , F = 100 N

theta = 32 degree C

coefficient of kinetic friction, uk = 0.15

distance,d = 34 m

For the net force acting on the block

Normal force acting is N1

N1 = 11 * 9.8 - 100 * sin(32)

N1 = 54.81 N

For the net work done on the box

net work done on the box = F * cos(theta) * d - u * N1 * d

net work done on the box = 100 * cos(32) * 34 - 0.15 * 54.81 * 34

net work done on the box = 2604 J

the net work done on the box is 2604 J

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