Question

A particle is moving along the x axis. The position of the particle at any instant is given by x=a+bt^2 where a =6 m and b=3.5 m/s^2, t is measured in second. Find the velocity of the particle at t=3 s​

Answer 1

Answer:

Speed is = 12.5m/s

as x comes out to be = 37.5

speed = x/t

= 37.5/3

= 12.5

Answer 2

21m/s

Explanation:

differentiate the equation of position wrt x & hence you will get the equation of velocity & finally put the value of b & t