Figure 10 shows a trolley of weight 20 N pulled by a force of 4 N from the bottom to the top of an inclined plane at a uniform speed.

      

Figure 10 shows a trolley of weight 20 N pulled by a force of 4 N from the bottom to the top of an inclined plane at a uniform speed.
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(i) State the value of the force acting downwards along the inclined plane.
(ii) Explain how the value in part (a)(i) is obtained.

  

Answers


John
(i) 4 N

(ii) Since the trolley is moving at uniform speed the effort E is equal to frictional force.
johnmulu answered the question on May 16, 2017 at 08:49


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