Question

If a car is travelling at a velocity of 4m/s along
a straight line speeds up uniformly to velocity of
10 mls in 2 sec. Find the accleration.​

Answer 1

Given:-

• Initial velocity ,u = 4m/s
• Final velocity ,v = 10m/s
• Time taken ,t = 2s

To Find:-

• Acceleration ,a

Solution:-

According to the Question

We have to calculate the acceleration of the car .

As we know that acceleration is defined as the rate of change in velocity.

• a = v-u/t

where,

• v is the final velocity
• a is the acceleration
• u is the initial velocity
• t is the time taken

Substitute the value we get

$:\implies$ a = 10-4/2

$:\implies$ a = 6/2

$:\implies$ a = 3m/s²

• Hence, the acceleration of the car is 3m/s².

Answer 2

Given :-

If  a car is travelling at a velocity of 4m/s along  a straight line speeds up uniformly to velocity of  10 m/s in 2 sec.

To Find :-

Acceleration

Solution :-

v = u + at

10 = 4 + a(2)

10 = 4 + 2a

10 - 4 = 2a

6 = 2a

6/2 = a

3 = a

Hence

Acceleration is 3 m/s²

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