Question

The weights of two bodies are 2.0 N and 2.0kgf respectively. What is the mass of each body? Calculate the ratio of work done on both bodies in lifting them through a height of 5 m.​

Answer 1

Answer:

For 1st body :

Let W1 = 2.0 N

Then W1 = m1g

Substituting the values, we get

2 = m1 x 10

⇒ m1 = 2/10 = 0.2 kg

For IInd body :

Let W2 = 2.0 kgf.

Then W2 = m2g

Substituting the values, we get

2 x 10 = m2 x 10

⇒ m2 = 2 kg