Question

A dog is running. His human calls to him and he accelerates at 2.74 m/s/s. 3.63 seconds later, his velocity is 10.3 m/s. What was his initial velocity

Answer 1

Answer:

0.35 m/s

Explanation:

A = v-u/t

2.74 = 10.3 - u/3.63

x 3.63

2.74 x 3.63 = 10.3 - u

+u (both sides)

u + (2.74x3.63) = 10.3

- (2.74 x 3.63)

u = 10.3 - (2.74 x 3.63)

u = 0.3538

u = 0.35 to 2d.p

Hope this helps!