Question

A ball starting from rest slides down an inclined plane of length 10 m with a speed of 10 ms What is the acceleration produced in the ball? [Ans. + 5 ms-2] -1

Answer 1

A ball starting from rest slides down an inclined plane of length 10 m with a speed of 10 m/s.

• Since the ball starts from rest So the Initial velocity will be zero.
• Final Velocity is 10 m/s
• Distance is 10 m

To calculate :-

• What is the acceleration produced in the ball?

According to the third equation of motion,

`{ \red{ \longrightarrow{ \underline{ \underline {v² - u² = 2as }}}}}`

Here,

• v = Final velocity
• u = initial velocity
• a = acceleration
• s = distance

on substituting the values, we have

`\longrightarrow 10^2 - 0^2 = 2 (a)(10)`

`\longrightarrow 100 = 20 * a`

Divide both sides by 20,

`\longrightarrow a = 5 ms ^(-2)`

Therefore, The Acceleration of the ball is 5 m/s²