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A 6 kg bowling ball moves with a speed of 3 m/s. How fast does a 7 kg bowling ball need to move so that it has the same kinetic energy?

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Answer: 7 kg bowling ball must move with a speed of 2.8 m/s so that it has the same kinetic energy.

Step-by-step explanation:

Kinetic energy is the energy possessed by a body by virtue of its motion.


K.E=(1)/(2)mv^2

m = mass of object

v= velocity of the object


K.E=(1)/(2)* 6kg* (3m/s)^2=27Joules

b) for a 7 kg bowl to have kinetic energy of 27 Joules:


27J=(1)/(2)* 7kg* v^2


v^2=7.7


v=2.8m/s

Thus 7 kg bowling ball must move with a speed of 2.8 m/s so that it has the same kinetic energy

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