Question

If the work done by a motor to lift a 200 kg block
to a height his 30 kJ, then calculate the value of
height (h) in metres (Take, g= 10 m/s2).​

Answer 1

Answer:

100 m

Explanation:

w = f.d = 200 kj = 2× 10^5 joules

f = ma = 200× 10= 2 × 10^3 N

d = w/f = 2×10^5/2×10^3 meters

d= 10^2 m (100 m)