Self-Check por Learning
A truck mass 8000 kg and a car a mass 1000
kg are travelling at the same velocity. Which one has greater kinetic energy ? Why?

K.E of truck > K.E of car

Explanation:

Mass of the truck = 8000Kg

K.E=

K.E =

Mass of the car = 1000 Kg

K.E of the car =

Therefore Kinetic energy of the truck is greater than that of the car

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min