Question

A car is moving in a straight line with acceleration 3m/s ^2. If initial velocity of car is 2m/s then find:-
1} Velocity of car at t=5 second.
2} Distance travelled by car in first 5 second​

Answer 1

Explanation:

1) as we know v = u + at

where, u = 2m/s ,a = 3m/s² and t = 5s

so v = 2 + (3×5)

= 2 + 15

= 17 m/s

2) S= ut+1/2at²

= 2×5+1/2×3×25

= 10+75/2

95/2 m or 47.5 m