Question

1. A dog pulls a 20 N block with a force of 70 N of force East. The block moves with constant velocity of 0.4m / s East. Find the power of the dog.

Answer 1

Answer: 28 watts

Explanation: The power (P) of the dog is given by the formula:

P = F * v

where F is the force applied by the dog and v is the velocity of the block.

In this case, the force applied by the dog is 70 N and the velocity of the block is 0.4 m/s. Therefore, the power of the dog is:

P = 70 N * 0.4 m/s = 28 watts (W)