Question

A particle is constrained to move on a straight line path. It returns to the starting point after $10$ sec. The total distance covered by the particle during this time is $30m$ . Which of the following statements about the motion of the particle is $false$ :

• A. Displacement of the particle is zero
• B. Average speed of the particle is $3m/s$
• C. Displacement of the particle is $30m$
• D. Both (a) and (b)

Answer 1

The correct option is C Displacement of the particle is $30m$

Displacement of the particle will be zero because it comes back to its starting point .
Average speed $=\frac{\text{Total distance}}{\text{Total time}}=\frac{30m}{10sec}=3m/s$