Question

a trolley while going down an inclined plane has an acceleration of 2 cm square what will be its velocity 3 seconds after the start ​

Answer 1

Answer:

6cm/s

Explanation:

acceleration = 2cm/s^2

initial velocity = 0cm/s

final velocity = x

rate of time = 3 seconds

2 = (x - 0)

3

(x - 0) = 2 ( transposing )

3

(x - 0) = 2×3

x = 6

Therefore, the final velocity of the trolley is 6cm/s

Answer 2

Solution,

Here, we have

Initial velocity of the trolley, u = 0 (As starts from rest)

Acceleration of the trolley, a = 0.02 m/s²

Time taken by the trolley, t = 3 seconds

To Find,

Final velocity of the trolley, v = ?

According to the 1st equation of motion,

We know that,

v = u + at

So, putting all the values, we get

⇒ v = u + at

⇒ v = 0 + 0.02 × 3

⇒ v = 0.02 × 3

⇒ v = 0.06 m/s

Hence, the final velocity of the trolley is 0.06 m/s.