Question

Find the acceleration (m/s) of Cheetah if it acquires the velocity of 135 kmph with in 2s
after the start
a) 25/4
b) 35/4
c) 55/4
d) 75/4

Please answer who is first I will make them brainiest​

Answer 1

Solution :-

By the given information ,

• Velocity = 135 km/h
• Time taken = 2s

Here the given final velocity is in km/h , so we have to convert into SI units (m/s) .

♦ 135 km/h × 5/18 = Velocity in m/s

♦ 75/2 = Velocity in m/s

♦ Velocity in m/s = 37.5

Now , as we know that

Acceleration = Velocity/Time

⇒ Acceleration = 37.5/2

⇒ Acceleration = (75/2)/2

⇒ Acceleration = 75/2 × 1/2

⇒ Acceleration = 75/4

Hence , acceleration of the cheetah = 75/4 m/s²

Answer 2

Answer:

Given :-

Velocity = 135 km/h

Time = 2 sec

To Find :-

Acceleration (m/s)

Solution :-

Velocity in m/s

135 × 5/18

= 45 × 5/6

= 225/6

= 75/2

Now,

A = v/t

Where

A = Acceleration

v = velocity

t = time

A = (75/2)/2

A = 75/2 × 1/2

A = 75 × 1/2 × 2

A = 75/4

Thus,

• Acceleration is 75/4 m/s²