What happens to a kinetic energy when:-
a) the mass of the body is doubled at constant velocity?
b) the velocity of the body is doubled at constant mass?
c) the mass of the body is doubled but the velocity is reduced to half?
Answers
Answered by
3
a) Kinetic Energy becomes double.
b) Kinetic Energy will become 4 times.
c) Kinetic Energy will become half.
b) Kinetic Energy will become 4 times.
c) Kinetic Energy will become half.
Answered by
4
a) K.E = 1/2 * 2m * v * v
K.E = mv^2
b) K.E= 1/2 * m * (2v)^2
K.E= 1/2 * m * 4v^2
K.E= 2 mv^2
c) K.E= 1/2* 2m * (1/2 v)^2
K.E= 1/4mv^2
K.E = mv^2
b) K.E= 1/2 * m * (2v)^2
K.E= 1/2 * m * 4v^2
K.E= 2 mv^2
c) K.E= 1/2* 2m * (1/2 v)^2
K.E= 1/4mv^2
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