Question

A bike accelerates uniformly from rest to a speed of 10 m/s over a distance of 50 m. (a) Determine the acceleration of the bike. (b) how long will take to do that?​

Answer 1

See below

Step-by-step explanation:

Average speed = (0+ 10)/2 = 5 m/s

then to cover 50 m will take 50 m / 5 m/s = 10 seconds

change in velocity/ change in time = acceleration = 10/10 = 1 m/s^2

Answer 2

a) 0.2m/s

b) 5m/s

Step-by-step explanation:

a) acceleration=∆v/∆t

v=10

t=50

10/50=1/5

=0.2m/s

b) time= d/s

d=50m

s=10

50/10

=5m/s