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    				| 1. | 4. A truck starting from rest moves down a hill witha constant acceleration. If it covers a distance of300 m in 10 s, find its acceleration. Also find theforce acting on it if its mass is 8000 kg. | 
| Answer» Acceleration = change in velocity / change in time= (v - vo) / (t - to) Average Velocity= Change in displacement/ Total time= 300/10 = 30 m/s Acceleration = (30 - 0)/(10 - 0) = 3 m/s^2 Force acting on truck= mass*acceleration = 8000*3 = 24000 N | |