Question

solve the question home work !! ​

Answer 1

Given :-

• A scooter moving at a speed of 10m/s is stopped by applying brakes which produce acceleration of -0.5m/s².

To find :-

• How much distance will be covered by the scooter?

Solution :-

• Initial velocity = 10 m/s

• Acceleration = - 0.5 m/s²

• Final velocity = 0

According to third equation of motion

• → v² = u² + 2as

• Where " v " is final velocity, " u " is initial velocity, " a " is acceleration and " s " is distance.

• → (0)² = (10)² + 2 × (-0.5) × s

• → 0 = 100 - 1 × s

• → 0 = 100 - s

• → s = 100 m

Hence,

• Distance will be covered by the Scooter is 100m

More to know :-

• s = ut + ½ at² (second equation of motion)
• v = u + at (first equation of motion)
• Acceleration is the rate of change in velocity.
• Acceleration in negative is known as retardation