Question

a)A bus starting from rest moves with a uniform acceleration of 60 m/s² for 2 minutes.Find speed and distance​

Answer 1

• initial velocity=0m/s=u
• Acceleration=a=60m/s^2
• Time=t=2s
• Final velocity=v=?
• Distance=s=?

Using 1st equation of kinematics

$\boxed{\sf v=u+at}$

$\\ \sf\longmapsto v=0+60(2)$

$\\ \sf\longmapsto v=120m/s$

using 2nd equation of kinematics

$\boxed{\sf s=ut+\dfrac{1}{2}at^2}$

$\\ \sf\longmapsto s=0(2)+\dfrac{1}{2}\times 60(2)^2$

$\\ \sf\longmapsto s=30(4)$

$\\ \sf\longmapsto s=120m$

Answer 2

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Explanation:

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