A glass plate breaks when a mass of 3 kg or more is kept on it. An iron piece is kept on that plate in a lift. If the upward acceleration of the lift if gradually increased to 245 cmcdot s^(-2), the plate breaks, what is the mass of the iron piece?

A glass plate breaks when a mass of 3 kg or more is kept on it. An iro

1.	A glass plate breaks when a mass of 3 kg or more is kept on it. An iron piece is kept on that plate in a lift. If the upward acceleration of the lift if gradually increased to 245 cmcdot s^(-2), the plate breaks, what is the mass of the iron piece?
Answer» ANSWER :2.4 KG