Question

what is the relationship btw kinetic energy and momentum
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Answer 1

Kinetic energy and momentum of a moving body can be mathematically related as follows-

Consider the formula of kinetic energy-

K.E=12mv2

Multiply and divide R.H.S by m

⇒K.E=12mv2×mm =m2v22m =(mv)22m

We know that p=mv. Substituting for mv in the above equation we get-

K.E=p22m

The above equation gives the relation between Kinetic energy and momentum of the object which is under motion.

If the Momentum(p) is constant K.E∝1m

If Kinetic Energy(K.E) is constant p∝√m

If mass(m) is constant p∝√K.E

Answer 2

Answer:

It states that when a material is loaded within elastic limit, the stress is proportional to the strain produced by the stress. This means the ratio of the stress to the corresponding strain is a constant within the elastic limit.Apr 26, 2020

Explanation: