Question

7. 4500 J of energy is used to raise an object with a mass of 50 kg to a height h. Calculate h.
(Ans 9 m
​

Answer 1

Answer:

9 m

Step-by-step explanation:

Assuming g as 10 m/s^2

P.E = m x g x h

4500 = 50 x 10 x h

h = 4500/500

h = 9 m

Answer 2

Answer:

answer is 9m

Step-by-step explanation:

memorise the formula and slove it your self answer is given