Q 11-05-039NEETJEE MainMedium
An engine of constant power $60$ kW drives a car of mass $1200$ kg on a level road. The resistance to motion is a constant $2000$ N. The maximum speed of the car is
Answer: (B) $30$ m/s
Concept. At top speed the driving force equals the resistance.
Step 1. Speed. $\dfrac{60000}{2000} = 30$ m/s.
Answer. $30$ m/s (Option B).
Solution by Sreeraj P, M.Sc Physics