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Speed of Efflux

a force f=6t^...

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a force f=6t^2i^ +4tj^ acts on a particle of mass 3 kg. What will be the velocity of the particle at t=3 second if at t=0, the particle was at rest; 1)18i^+6J^ 2)18i^+121j^ 3)12i^ +6j^ 4)none

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\to F = 6 t^{2}^i + 4 t^j

is acting on a particle of mass

3 k g

then what will be velocity of particle at

t = 3

second and if at

t = 0

, particle is at rest :

\to F = 6 t^{2}^i + 4 t^j

, is acting on a particle of mass

3 k g

then what will be velocity of particle at

t = 3

t = 0

, particle is at rest?

Q. Two particles are shown in figure. At

t = 0

, a constant force

F = 6

N starts acting on the 3 kg mass. Find the velocity of the centre of mass of these particles at

t = 5 s

.

Q. Power supplied to a particle of mass

2 K g

varies with time as

p = 3 t^{2} / 2

t

is in seconds. If velocity of particle at

t = 0

v = 0

, the velocity of particle at time

t = 2 s

t = 0

{\to F}_{1} = (- 4.00^i + 5.00^j) N

acts on an initially stationary particle of mass

2.00 \times 10^{- 3} k g

{\to F}_{2} = (2.00^i - 4.00^j) N

acts on an initially stationary particle of mass

4 \times 10^{- 3} k g

t = 0

t = 2 m s

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