A2-kg wood block is pulled by a string across a rough horizontal floor. the string exerts a tension force of 30 n on the block at an angle of 20º above the horizontal. the block moves at constant speed. if the block is pulled for a distance of 3.0 m, how much work is done by the tension force?

Work done, W = 84.57 Joules

Explanation:

It is given that,

Mass of the wooden block, m = 2 kg

Tension force acting on the string, F = 30 N

Angle made by the block with the horizontal,

Distance covered by the block, d = 3 m

Let W is the work done by the tension force. It can be calculated as :

W = 84.57 Joules

So, the work done by the tension force is 84.57 Joules. Hence, this is the required solution.