Question

A car travel with uniform velocity of 30m/s for 5 second and then comes to rest
10 second with uniform deceleration.
i. Find the total distance travelled.
ii. Find the average velocity

Answer 1

Answer:

75 m/s and 15 m/s

Explanation:

V=0 m/s

U=30 m/s

t (1)= 5 s

t (2)= 10 s

a=V-U/t(2)-t(1)

a=0-30/10-5

a=-30/5

a=-6 m/s**2

(** means raise to the power )

2*a*S= V**2-U**2

2*-6*S= 0**2- 30**2

-12*S= 0-900

S=-900/-12

S=75 m

average Velocity= 75-0/10-5

75/5

15 m/s

Answer 2

Explanation:

hope it will help you dear