Question

A racing car has a uniform acceleration of 5 m/s². What distance will it cover in 20s after starting from rest?

Answer 1

S=ut+1/2at2
S=?
a=5m/s2
t=20s
S=0+1/2∗5∗20∗20
S=1000m

Answer 2

\[s=v _{0}t+1/2at ^{2}\]
where s equals distance,
v0 equals starting velocity,
t equals elapsed time,
and a equals acceleration.
s= 0X20 + 0.5X5X20X20 = 0 + 1000 = 1000m or 1km

Answer 3

\[s(t)=0,5 \times a \times t^{2} -> a=5 ; t=20 -> s=1 km\]