Question

A trolley, while going down an inclined plane, has an accleration of 2 cm s$^{–2}$ . what will be its velocity after 3 s after the start ?​

Answer 1

$\red{QUESTION}$

A trolley, while going down an inclined plane, has an accleration of 2 cm s$^{–2}$ . what will be its velocity after 3 s after the start ?

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Answer 2

Answer:

It's velocity after 3 second after the start will be 6cm s⁻¹.

Explanation:

Given:

• Initial velocity (u) = 0

• Time (t) = 3s

• Acceleration (a) = 2 cm s⁻²

To find:

Velocity.

☯️ Formula used:

First equation of motion.

v = u + at

• where v is final velocity.
• u is initial velocity.
• a is acceleration and
• t is time.

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Solution:

➪ v = u + at

Substitute the values, we get

➪ v = 0 + 2 × 3

➪ v = 6 cm s⁻¹.

Thus, 6 cm s⁻¹ will be it's velocity after 3 second after the start.