Question Detail
Question
An object released from rest at time t = 0 slides down a frictionless incline 1 meter during the first second. The distance travelled by the object during the time interval from t = 1 second to t = 2 seconds is...
Correct Answer
Option C is the correct answer.
Detailed Explanation
Under constant acceleration, distance in first second: s₁ = ½ a (1)² = 1 m => a = 2 m/s². Distance in first 2 seconds: s₂ = ½ a (2)² = ½ × 2 × 4 = 4 m. So distance from t=1 to t=2 is s₂ - s₁ = 4 - 1 = 3 m.
Hint
Use s = ½ a t² for constant acceleration from rest.