Algebra

The Kinetic energy (k)of a moving object varies jointly with it mass (m) and the square of its velocity (v).If an object has a mass of 22.5 kilograms and moving with a velocity of 20 meters per second has a kinetic energy of 4500 joules, find it kinetic energy when the velocity is 32 meters per second.

We must solve the problem using any method concept.

1. 👍
2. 👎
3. 👁
1. It will be (32/20)^2 = 2.56 times the kinetic energy at 20 m/s.

2.56 x 4500 = ____

1. 👍
2. 👎

Similar Questions

1. variation

Can you please check my answers? Thanxs! Write an equation that expresses the relationship. Use k as the constant of variation. 20. f varies jointly as b and the square of c. -I got: f=kbc^2 22. r varies jointly as the square of s

2. math

if Y varies jointly as X and the square of Z, and if Y=24 when X=2 and Z=6, find Y when X=10 and Z=9

3. Physics

A 5.00 g object moving to the right at +20.0 cm/s makes an elastic head-on collision with a 10.0 g object that is initially at rest. (a) Find the velocity of each object after the collision. 5.00 g object cm/s 10.0 g object cm/s

4. Kinetic and Thermal energy quick check answers

1. What is kinetic energy? a) thermal energy b) the energy of motion c) the energy of radiation d) stored energy 2. A fisherman in a boat is drinking hot coffee. The large lake below his boat is full of cold water. Which statement

1. Physics

please check: Which of the following energy forms is associated with an object in motion? a. potential energy b. elastic potential energy c. nonmechanical energy d. kinetic energy i think its B Which of the following energy forms

1. In moving an object of mass 10 kg through a distance of 8.0 m, 40 J of work is done. The average force exerted is? my answer: 320N 2. What is the kinetic energy of a 20 kg object moving at a speed of 10 m/s? my answer: 1000J 3.

3. Physics

1. Calculate the kinetic energy of a 5.2kg object moving at 2.4 m/s 7. Calculate the potential energy of a 5.2kg object positioned 5.8m above the ground 21. Calculate the speed of a 5.2 kg object that possesses 26.1 J of kinetic

4. Science

24. What does the thermal energy of an object depend upon? A. The temperature and arrangement of the particles in that object. B. The temperature, weight, and number of particles of that object. **** C. The heat of that object and

1. science

Two identical masses are moving down a slope. One mass is traveling twice as fast as the other mass. How does the kinetic energy of one mass compare to the other? a. The faster object has the same kinetic energy as the slower

2. Physics

The kinetic energy K of an object of mass m moving at a speed v is defined as K=(1/2)mv^2. It seems reasonable to say that the speed of an object--and, therefore, its kinetic energy--can be changed by performing work on the

3. Physics

Two objects moving with a speed v travel in opposite directions in a straight line. The objects stick together when they collide, and move with a speed of v/10 after the collision. (a) What is the ratio of the final kinetic energy

4. Physics

Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. The work done on object A is 500J. After the force pulled each object, object A moves twice as