Question

The position of a particle is given by equation x = 4t2- 15t +20.
Where x is in meter and t is in seconds. Find the position,
velocity
and acceleration of particle at 4 seconds​

Answer 1

Explanation:

x= 4t^2-15t+20

velocity is f'(x)=8t-15

at t=4

v=8×4-15

=17

acceleration is f''(x)=8

at t=4

a=8