Question

Earlier in class, we used the method of work and energy to find that if this block is released from rest at A, and the kinetic coefficient of friction is 0.20 , then the speed of the block at B is 15.9ft/s. With this information, use the method of to find the time required for the block to slide from A to B. Recall that the distance that the block slides is 6ft/sin30∘=12feet. Check your answer with equations of motion.

Answer 1

To find the time required for the block to slide from A to B, use the equation of motion and solve for time using the given distance and speed.

Step-by-step explanation:

To find the time required for the block to slide from A to B, we can use the equation of motion: distance = speed × time. We know that the distance is 12 feet and the speed is 15.9 ft/s. Plugging these values into the equation, we can rearrange it to solve for time: time = distance / speed.

So, substituting the given values, we get: time = 12 feet / 15.9 ft/s ≈ 0.754 seconds.

Therefore, the time required for the block to slide from A to B is approximately 0.754 seconds.