First slide

Fluid statics

Question

Two particles are shown in figure. At time t = 0, a constant force F = 6N starts acting on the 3 kg particle. The velocity of the centre of mass of these particles at t = 5s is

Moderate

A

$5 m s^{- 1}$
B

$4 m s^{- 1}$
C

$6 m s^{- 1}$
D

$3 m s^{- 1}$

Solution

$a c c e l e r a t i o n o f c e n t e r o f m a s s = \frac{0 + 6}{5} = 1.2 m s^{- 2} v e l o c i t y a f t e r 5 s e c = a t = 5 x 1.2 = 6 m s^{- 1}$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App