If the speed of a moving object is doubled the kinetic energy of the object is?

Answer 1

The relation between kinetic energy is proportional to the square of velocity. Momentum is directly proportional to velocity. If the momentum of an object is doubled, but its mass does not increase (so velocity remains well below the speed of light), then its velocity is doubled. If the velocity is doubled then the kinetic energy increases by the square of 2, or four time.

Answer 2

kinetic energy= half mass multiplied by velocity square (KE=1/2mv2)

if velocity is doubled, then KE=1/2mass multiply by 2velocity square

then, 1/4 KE= 1/2 mass velocity square

so it can be deduced that if velocity is doubled of an object, then its kinetic energy will decrease by 4 times.

Answer 3

Increased. Formula is E= Mass x velocity squared. Doubling the velocity has a disproportionate effect on energy because of squaring. 1 grain object at 10 ft per second= 1x 10 squared- 100. 1 grain at 20 fps, 1 x 20 squared- 400 1x 40 gr squared- 1600 etc. Rather steep curve there.

Answer 4

Its kinetic energy is quadupled - KE = (1/2)mv2. If you multiply v by two, then KE = (1/2)m(2v)2, or KE = (1/2)m(4)v2, or KE = 2mv2, 4 times the initial KE.

Answer 5

It will increase by a factor of 4 (2 squared).

Answer 6

When mass of object is doubled, then the potential energy will also double.

Answer 7

Quadrupled (4 times)

Answer 8

Quadrupled.

Answer 9

quadrupled