Question

a bus starting from rest, moves with uniform acceleration. After 10 minutes, its speed 60 km per hour. calculate acceleration of the bus.

Answer 1

u = 0;
v = 60 km/h =1000m /min;
t = 10 min
a=(v-u)/t
=(1000-0)/10
=100 m /min^2
=360 km/h^2

Answer 2

Answer:

The bus accelerates at a rate of 0.027m/s².

Explanation:

To find acceleration we will use the first equation of motion which is given as,

$v=u+at$     (1)

Where,

v=final velocity

u=initial velocity

a=acceleration of the body

t=time during which the motion occurs

From the question we have,

Time=10minutes=600 seconds

The initial velocity(u)=0    (as the bus starts from rest)

The final velocity(v)=60km/hr=16.67m/s

By substituting the entities in equation (1) we get;

$16.67=0+a\times 600$

$a=\frac{16.67}{600}$

$a=0.027\ m/s^2$

Hence, the bus accelerates at a rate of 0.027m/s².

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