Question

The displacement of a particle moving along x-axis is given by x=18t+15t².Find the instantaneous velocity at t=0 and t=2

Answer 1

Answer:

x= 18t + 15 t2

x= 18 +30t

x= 30

Explanation:

by double defferentiatiom

Answer 2

Answer:18 ,78

explanation

at 0

v= differentiation of x

v=18+30t

at t=0

v=18

at t=2

v=18+30*2

78