Question

position (in m) of a particle varies with time t in (seconds) as x=t^3. the instantaneous velocity at t=2secondsis

Answer 1

Answer:

Hope helps....

Answer 2

Answer:

Given,

x

=t+3

Thus, x=(t+3)

2

Thus, v=

dt

dx

=2t+6

Hence, v varies linearly with t and initial velocity = 6 m/s.