Physics 12  Mid-Year Review


 

8. A 96.0 kg rocket-powered sled can accelerate up a frictionless incline of 140 at 2.1 m/s2. Just as this sled reaches the 18.0 m/s, it slides over a surface on the incline that has a coefficient of friction of 0.76. The rocket continues to burn throughout the motion. 

Solution

Next Question

a) Draw the free body diagram of the rocket while on the frictionless surface and determine the thrust force of the rocket. (2 marks)

 

 

 

 

 

 

b) Draw the free body diagram of the rocket-powered sled while on the frictional surface and determine the net force acting on the rocket. (5 marks)    

 

 

 

 

 

c) How far up the frictional surface does the rocket-powered sled travel before coming to rest? (2 marks)