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2 cards from this section. Quick, good the night before a test.
Calculate the kinetic energy of a 2 kg object moving at a speed of 3 m/s.
Use Ek = 1/2 mv² to find the answer.
What is the formula for kinetic energy?
Think about the variables involved!
What is the kinetic energy of a 4 kg object moving at 5 m/s?
Use the kinetic energy formula.
True or False: Kinetic energy is proportional to the square of velocity.
Think about the velocity term in the kinetic energy formula.
A cyclist with a mass of 70 kg travels at a speed of 15 m/s. Calculate the kinetic energy and explain what it means in the context of the cyclist's motion.
Don’t forget to plug in the numbers correctly!
If a moving truck with a mass of 2500 kg collides and comes to a stop from a speed of 25 m/s, calculate the amount of energy dissipated in the crash.
Find the initial kinetic energy before the truck stops.
4 more questions in this section. Enroll free to practise them all.
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