Question

The distance travelled by a particle moving along a straight line is given by X equal to 4 t Plus 5t square plus 6 cube find its initial velocity of particle

Answer 1

Answer:

intial velocity is 4m/s

Explanation:

by differentiation,we get velocity 4+10t

Now intial velocity means t = 0 ,so velocity 4 m/s

Answer 2

Answer:

4m/sec

Explanation:

x= 4t+5t^2+ 216

differentiation both side we have

v= 4+ 10t

now put t= 0

u= 4 m/sec