Question

4. A Body of the mass o.4kg if at the uust Bueak into two equal part due to internal force one part of the made 0-2 kſ found to mour at a speed of 12 meter per seg toward east, what is the vilocity of other part-​

Answer 1

Answer:

(a) False. In an elastic collision of two bodies, the momentum and energy of  the system is conserved.

(a) False. In an elastic collision of two bodies, the momentum and energy of  the system is conserved.(b) False. Some energy is lost in heat, so it is not conserved.

(a) False. In an elastic collision of two bodies, the momentum and energy of  the system is conserved.(b) False. Some energy is lost in heat, so it is not conserved.(c) False. It is true only for conservative forces. For non-conservative forces, work done over one cycle is not zero.

(a) False. In an elastic collision of two bodies, the momentum and energy of  the system is conserved.(b) False. Some energy is lost in heat, so it is not conserved.(c) False. It is true only for conservative forces. For non-conservative forces, work done over one cycle is not zero.(d)  True. Some energy is lost in internal friction and heat.

Explanation:

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