Question

A car accelerates 6 m/s to 18 m/s in 12 seconds. Assuming the acceleration to be uniform calculate
A) the acceleration and
B) the distance covered in 12 seconds.

Answer 1

Answer:

a = 1m/s², distance = 144m

Explanation:

first,

v=u+at

= 18=6+a(12)

=18-6= a(12)

= 12/12 = a

= a = 1m/s² ans.

now,

v² = u²+2as

= (18)² = (6)²+2*1*s

= 324 = 36+2s

= 324-36 = 2s

= 288 / 2 = s

s = 144m ans.