Question

car starts with velocity 10 metre per second accelerates at 5 metre per second square find the final velocity when the car has travelled the distance 30 m​

Answer 1

Answer:

v=20m/s

Explanation:

v^2=u^2+2as

here,s=30m

u=10m/s

a=5m/s^2

=>v^2=100+2(5)(30)

=>v=400^(1/2)

therefore v = 20m/s

Answer 2

Explanation:

Initial Velocity (u) = 10 m/sec

Acceleration (a) = 5 m/sec

2

Distance (s) = 30 m

Final velocity (v) = ??

Using Newton's Third law of Motion,

v

2

=u

2

+2as

v

2

=10

2

+2×5×30

v

2

=100+300

v

2

=400

v =

400

v = 20 m/sec

_____________________________

ANSWER =

FINAL VELOCITY = 20 m/sec