Question

28. Which would have greater effect on kinetic energy of an object - doubling the mass, or
doubling the velocity?
29. Which of the following are tri-atomic and tetra-atomic molecules? CH3CI, CaCl2, NH3,​

Answer 1

Answer:

K.E =

2

1

mv

2

If mass is doubled, K.E becomes doubled (×2).

If velocity is doubled, K.E becomes quadrupled (×4).

Doubling the velocity would have a greater effect on the kinetic energy of an object because the formula contains the square of velocity.

Answer 2

Answer:

28) Doubling the velocity