Question

a body starts from rest and covers a distance of 75 m by accelerating uniformly at 15 metre per second square calculate the time taken by the body and the final velocity of the body​

Answer 1

a body starts from rest and covers a distance of 75 m by accelerating uniformly at 15 metre per second square calculate the time taken by the body and the final velocity of the body.

Answer:

The initial velocity travelled is 625m

The accleration is α=10m/s2

The time is t=5s

Apply the equation of motion

v=u+at

The velocity is v=0+10.5=50m/s.

The distance travelled in the first 5s is

s=ut+2

1at2=0.5+21.10.52=125m

The distance travelled in the following 10 sis

s⅙ =ut¹=50.10=500m

The total distance travelled is d=s+s¹ =125+500=625m

I hope this helps you... frnda...