Question

A car acquires a velocity of 72km per hour in 10 seconds starting from rest find (1) the acceleration (2) the average velocity and (3)the distance travel in this time​

Answer 1

Answer:

please follow me..............

Answer 2

Step-by-step explanation:

We have the following information,

Initial velocity, (u) = 0 m/s

Final velocity

(u)=72 km/hr

=72(1000)m/s

3600

=20m/s

Time taken , (t) = (10) s

(i) So acceleration,

a=u-u

t

Put the values in the above equation to get the value of acceleration

a=20-0

10

=2m/s²

(ii) we have to find the average velocity. we will use the following relation,

Average velocity =

Inltial velocity +final velocity

2

So , Average velocity = u+u

2

v+u2

Therefore putting the value in the above to get the avearge velocity ,

Average velocity = 20+0

2

20+02 m/s

= 10 m/s

(iii) We have to calculate the distance travelled. We will use the relation,

Distance travelled = (Average velocity) (Time)

So distance travelled is,

= (10)(10) m

= 100 m