Question

12. A man of mass 75 kg stands on a weighing machine in a lift which is moving (a) upwardswith a uniform acceleration 1.2 ms? (b) downwards with a uniformacceleration of 1.8 ms-2, (c) upwards with a uniform speed of 5 ms and (d) freely falling.What would be the reading on the scale of the weighing machine in case​

Answer 1

Answer:

A particle starts from rest travelling with uniform acceleration of 2 ms−22 ms−2for 10 sec and then travel with constant velocity for 30 sec and then with uniform retardation of 4 ms−24 ms−2while coming to rest at another place. Find the total distance travelled by the body?