Question

If an object of mass 2 kg is thrown up from the ground reaches a height...

If an object of mass 2 kg is thrown up from the ground reaches a height of 5 m and falls back to the Earth (neglect the air resistance). The total work in J done by gravity both in upward and downward motion is:

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A 3 kg cannonball is shot straight up from ground level at a velocity of 30...
A 3 kg cannonball is shot straight up from ground level at a velocity of 30 m/s. For the following questions, neglect air resistance and assume acceleration due to gravity is -10 m/s2. (a) Use the 1D equations of motion to find: i. The maximum height the cannonball reaches ii. The time it takes to reach this height iii. The time it takes to fall back to the ground iv. The speed with which it hits the ground
A ball with mass m kg is thrown upward with initial velocity 16 m/s from the...
A ball with mass m kg is thrown upward with initial velocity 16 m/s from the roof of a building 28 m high. Neglect air resistance. Use 9.8 m/s2. Round your answers to one decimal place. (a) Find the maximum height above the ground that the ball reaches. meters (b) Assuming that the ball misses the building on the way down, find the time that it hits the ground.
A ball, mass is 8 kg, is thrown from the top of a 30 m cliff...
A ball, mass is 8 kg, is thrown from the top of a 30 m cliff with a velocity of 20 m/s straight up. The ball misses the cliff on the way down. Ignore air resistance. Use work and conservation of energy to find the following values. a. what is the work done by gravity while the ball is in the air? b. what is the maximum height of the ball? c. what is the magnitude of the velocity just...
A blue ball is thrown upward with an initial speed of 21.2 m/s, from a height...
A blue ball is thrown upward with an initial speed of 21.2 m/s, from a height of 0.5 meters above the ground. 2.6 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 11.7 m/s from a height of 25.7 meters above the ground. The force of gravity due to the earth results in the balls each having a constant downward acceleration of 9.81 m/s2. A) What is the speed of the...
A 4.0 kg mass starting at rest is dropped from a height of 120 m above...
A 4.0 kg mass starting at rest is dropped from a height of 120 m above the surface of the Earth. As it falls it experiences an air resistance of 13 N. Just before it strikes the ground, determine the change in potential energy ΔU, the work done by the air W, the final kinetic energy Kf, and its final speed vf
A 4.0 kg mass starting at rest is dropped from a height of 120 m above...
A 4.0 kg mass starting at rest is dropped from a height of 120 m above the surface of the Earth.  As it falls it experiences an air resistance of 13 N.  Just before it strikes the ground, determine the change in potential energy ΔU, the work done by the air W, the final kinetic energy Kf, and its final speed vf.
A ball with mass 1/9.8 kg is thrown upward with initial velocity 20 m/s from the...
A ball with mass 1/9.8 kg is thrown upward with initial velocity 20 m/s from the roof of a building 30 m high. Assume that the force of air resistance (drag force) is (v^2)/1225. Find the maximum height above the ground that the ball reaches. (Hint: find the velocity v(t) first, then find the height x(t).)
A blue ball is thrown upward with an initial speed of 21.4 m/s, from a height...
A blue ball is thrown upward with an initial speed of 21.4 m/s, from a height of 0.9 meters above the ground. 2.6 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 9.2 m/s from a height of 25.3 meters above the ground. The force of gravity due to the earth results in the balls each having a constant downward acceleration of 9.81 m/s2. 1) How long after the blue ball...
An object of mass 5 kg is released from rest 24525 m above the ground and...
An object of mass 5 kg is released from rest 24525 m above the ground and allowed to fall under the influence of gravity. Assume the gravitational force is constant, with g=9.8 m/sec2 , and the force due to air resistance is proportional to the velocity of the object with proportionality constant k= 1 kg/sec. Approximate when (in seconds) the object will strike the ground.
1) If a person holds 50 kg object at a height of 2 m above the...
1) If a person holds 50 kg object at a height of 2 m above the floor for 10 s. How much work is done? W = F×d (2) The work done in lifting 30kg of bricks to a height of 20m is W = m ×g × d (Formula, W = F × d but Force = m × g) (3) A total of 4900 J is used to lift a 50-kg mass. The mass is raised to a...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT