During the first 18 min of a 60 min trip, a car has an average speed of 14m/s. What should be the average speed for remaining 42 min so that car is having an average speed of 21 m/s for the entire journey?
radhikakgosavi04
Asked:
December 2022
A particle accelerated uniformly from rest by a force delivering constant power. Then velocity is directly proportional to (t = time) :