Numerical Problems Based on Class 9 Science Chapter 11 Work and Energy
Q.1. A man weighing 70 kg carries a weight of 10 kg on the top of a tower 100 m high. Calculate the work done by the man (g = 10m/s2). Q.2. A porter lifts a luggage of 15 kg from the ground and puts it on his head 1.5 m above the ground. Calculate … Read more
