Question

A net force F exerted on a 22 $kg$ block. A graph is drawn between force versus time in seconds as shown in the given graph. The speed of the block is greatest at:

• A. $2s$
  
• B. $3s$
  
• C. $4s$
  
• D. $5s$
  
• E. The speed is constant at all times.

Answer 1

The correct option is D $5s$

Since there is a force acting on the block at all times up to 5 s, the block continues accelerating up to 5 s, where its speed is the greatest.