Question

A motorcycle is travelling at a constant speed of 108 kilometers per hour. Express its speed in meter per second.

Answer 1

Answer:

V

2

=108×

18

5

=30m/s V

1

=36×

18

5

=10m/s

⇒V

2

=U

2

+2as

⇒(30)

2

=(30)

2

+2×a×200

⇒a=−2m/s

Answer 2

Answer:

V2=108×185=30m/s               V1=36×185=10m/s

⇒V2=U2+2as

⇒(30)2=(30)2+2×a×200

⇒a=−2m/s