Question

An object starts from rest and accelerates at the rate of 2m/s2 in 4 s.What distance will it cover?​

Answer 1

Given :

• An object starts from rest and accelerates at the rate of 2m/s2 in 4 s.

To Find :

• What distance will it cover.

Solution :

1. Intial Velocity (u) = 0 m s⁻¹ [because the object starts from rest]
2. Acceleration (a) = 2 m s⁻²
3. Time (t) = 4 s
4. Distance (S) = ?

Using the second equation of motion, S = ut + ½ at²

• S = ut + ½ at²
• S = 0 × 4 + ½ × 2 × (4)²
• S = 0 + ½ × 2 × 4 × 4
• S = 0 + 4 × 4
• S = 0 + 16
• S = 16 m

Therefore :

• The object will cover 16m at a rate of 2 m s⁻² in 4sec.

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