AIPMT | 2015Work, Power and EnergyEasy
Question
A particle of mass m is driven by a machine that delivers a constant power k watts. If the particle starts from rest the force on the particle at time t is :
Options
A.
B.
C.
D.
Solution
P = Fv = mav
⇒ K = mv =
By integrating the equation
⇒ ∫ v dv =
⇒
a =
F = ma = m
⇒ F = 
Hence option (4
⇒ K = mv =
By integrating the equation
⇒ ∫ v dv =
⇒
a =
F = ma = m
⇒ F = Hence option (4
Create a free account to view solution
View Solution FreeMore Work, Power and Energy Questions
A body of mass is slowly halved up the rough hill by a force F at which each point is directed along a tangent to the hi...A hammer of mass M strikes a nail of mass m with velocity of v ms-1 and drives it ′a′ metre into fixed block...The kinetic energy of a particle continuously increase with time. Then...Three blocks with masses m, 2m and 3m are connected by strings,as shown in the figure. After an upward force F is applie...Two masses of 1 g and 4 g are moving with equal kinetic energies. The ratio of the magnitudes of their momenta is...