Work, Power and EnergyHard
Question
Three different objects m1, m2 and m3 are allowed to fall from rest and from the same point O along three different frictionless paths. The speeds of the three objects, on reaching the ground, will be in the ratio of
Options
A.m1 : m2 : m3
B.1 : 1 : 1
C.m1 : 2m2 : 3m3
D.
Solution
For paths BC1, BC2 & BC3 the height is same that is h. The terminal velocity be v then for all cases, v =
So, all will have same value of terminal velocity.
Create a free account to view solution
View Solution FreeMore Work, Power and Energy Questions
Masses of two substances of 1 g and 9 g respectively. If their kinetic energies are same, then the ratio of their moment...A body is moved along a straight line by a machine delivering constant power. The distance moved by the body in time t i...A shell of mass m moving with velocity with velocity v suddenly breakes into 2 pieces. The part having mass m/3 remains ...Two masses of 1 g and 4 g are moving with equal kinetic energies. The ratio of the magnitudes of their momenta is...Energy conservation law says that :-...