A cheetah can run briefly with a speed of 31 m/s. Suppose a cheetah with a mass of 47 kg runs at this speed. What is the cheetah’s kinetic energy?K.E = 0.5MV2
Question
A cheetah can run briefly with a speed of 31 m/s. Suppose a cheetah with a mass of 47 kg runs at this speed. What is the cheetah’s kinetic energy?K.E = 0.5MV2
Solution
To calculate the kinetic energy of the cheetah, we can use the formula for kinetic energy which is K.E = 0.5 * m * v^2.
Here, m = mass of the cheetah = 47 kg v = speed of the cheetah = 31 m/s
Substituting these values into the formula, we get:
K.E = 0.5 * 47 kg * (31 m/s)^2
First, square the velocity:
(31 m/s)^2 = 961 m^2/s^2
Then, multiply this by the mass and 0.5:
K.E = 0.5 * 47 kg * 961 m^2/s^2 = 22558.5 Joules
So, the kinetic energy of the cheetah is 22558.5 Joules.
Similar Questions
Lorna walked to the market to buy the week’s supply of pork, fish, and vegetables for her family. What is her kinetic energy if she weighs 45kg and moves at a speed of 3.2m/s?
A cheetah has a mass of 60 kg. It produces a force of 480 N between its feet and the ground. What is its acceleration?
A racing car has a mass of 1540 kg. What is its kinetic energy if it has a speed of 105 km/h? Assume that air resistance is negligible.
A cheetah running at a velocity of 18 m/s accelerates 1 m/s2 for 5 sec. What is the final velocity of the cheetah?3.6 m/s223 m/s3.6 m/s 32 m23m/s2
Shawn and his bike have a total mass of 45.5 kg. Shawn rides his bike 1.95 km in 10.0 min at a constant velocity. What is Shawn's kinetic energy? Assume that air resistance is negligible.
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.