Question

A 1000 kg car accelerates from rest to 15 m/s in 15 seconds. What resultant force caused this?

Answer 1

Answer:

S=ut+

2

1

at

2

=37.5 m

Force =ma

=1000×3

=3000 N

Power =

time

Work

=

t

Force×s

=

5

3000×37.5

=22500

Gain in K.E =

2

1

m(v

2

−u

2

)

=

2

1

×1000(15)

2

=112500 J

u=0,v=15 m/s

t=5 sec

a=

t

v−u

=

5

15−0

=3 m/s

2

Answer 2

Answer:

15000 make me brainlist I'll give expansion

Explanation:

make me brainlist I'll give expansion