Question

A bus decreases its speed from 72 kilometre to 36 km in 1 min 40 sec find the acceleration of the bus​

Answer 1

Explanation:

v-u=at

36-72=a(100)

a=-36/100

a=-0.36

Answer 2

★SoluTion★:-

initial velocity ,u= 72km /hr= 20m/sec

final velocity, v =36km/hr=10m/sec

time taken ,t=1min 40 sec = 100 sec

acceleration,a =?

we know that:-

$a = \frac{v - u}{t} \\ a = \frac{10 - 20}{100} = \frac{ - 10}{100} = - 0.1 \frac{m}{se {c}^{2} }$

★Answer★:-

there fore acceleration of the bus =0.1m/sec²