Question

2. A 2.50 kg ball is at a height of 5.00m. It is then dropped. a) What is its kinetic energy after it has fallen 2.00m? (5 pt
0 0
Add a comment Improve this question Transcribed image text
Answer #1

om 25 kg m= 2.50 kg. hsm in ao At highest point Total Energy PETKE KE - 0 So TE- PE = mgh TE = (2-5) (9.8)(5) = 1225 J At a hplease like and comment.

Thank you

Add a comment
Know the answer?
Add Answer to:
2. A 2.50 kg ball is at a height of 5.00m. It is then dropped. a)...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • 1. A ball with a mass of m 0.175-kg is dropped from a height of h...

    1. A ball with a mass of m 0.175-kg is dropped from a height of h 2.50 m It rebounds to a height ofh2- 2.00 m (a) Using energy method to find the velocity (magnitude and direction of the ball immedately before hiting the floor? (b) Using energy method to find the velocity (magnitude and drection) of the ball immed iately aftfer hitting the floor? (c) If the collision between the ball and the floor lasts for Δt-0.015 sec, using...

  • A ball is dropped from a height of 2.50 m and rebounds to a height of...

    A ball is dropped from a height of 2.50 m and rebounds to a height of 2.10 m . Approximately how many rebounds will the ball make before losing 90% of its energy? Express your answer as an integer.

  • A 0.10-kg ball is dropped from a height of 10 m and rebounds to a height...

    A 0.10-kg ball is dropped from a height of 10 m and rebounds to a height of 8.0 m. a. Is energy conserved in the ball? b. If not, how much energy was lost, and what happened to it?

  • A 1.0lb ball is dropped from a building 256ft tall a)What is the balls energy at...

    A 1.0lb ball is dropped from a building 256ft tall a)What is the balls energy at the time of release b)What are the balls PE and KE after it has fallen 150ft c)what is its total energy before it hits the ground?

  • A soft tennis ball is dropped onto a hard floor from a height of 1.55 m...

    A soft tennis ball is dropped onto a hard floor from a height of 1.55 m and rebounds to a height of 1.03 m. (Assume that the positive direction is upward.) (a) Calculate its velocity just before it strikes the floor. (b) Calculate its velocity just after it leaves the floor on its way back up. -Answer is 4.49 m/s (c) Calculate its acceleration during contact with the floor if that contact lasts 3.50 ms. (d) How much did the...

  • A soft tennis ball is dropped onto a hard floor from a height of 1.50 m...

    A soft tennis ball is dropped onto a hard floor from a height of 1.50 m and rebounds to a height of 1.13 m. (Assume that the positive direction is upward.) (a) Calculate its velocity just before it strikes the floor, in m/s. (b) Calculate its velocity just after it leaves the floor on its way back up, in m/s. (c) Calculate its acceleration (in m/s^2) during contact with the floor if that contact lasts 3.50 ms. (d) How much...

  • A 20g "superball" is dropped onto a wooden box from a height of 1.5meters. A. What...

    A 20g "superball" is dropped onto a wooden box from a height of 1.5meters. A. What is the ball's kinetic energy just before it hits the box? B. If 90%of the ball's kinetic energy is restored to the ball after impact with the box, to what height will it return? In a second trial, the ball is dropped from the same height onto a small drum, which acts like a spring, depressing to bring the ball to a momentary stop...

  • A dropped rubber ball of 1.5 kg mass hits the floor with a speed of 6m/s...

    A dropped rubber ball of 1.5 kg mass hits the floor with a speed of 6m/s and rebound s to a height of 0.3m. What fraction of initial kinetic energy lost in the collision?

  • A soft tennis ball is dropped onto a hard floor from a height of 1.50 m...

    A soft tennis ball is dropped onto a hard floor from a height of 1.50 m and rebounds to a height of 1.10 m. (Assume that the positive direction is upward. Indicate the direction of velocities and accelerations with the sign of your answer.) (a) Calculate its velocity (in m/s) just before it strikes the floor. (b) Calculate its velocity (in m/s) just after it leaves the floor on its way back up. (c) Calculate its acceleration (in m/s2) during...

  • A steel ball is dropped onto a hard floor from a height of 1.95 m and rebounds to a height of 1.89m

    A steel ball is dropped onto a hard floor from a height of 1.95 m and rebounds to a height of 1.89m. (Assume that the positive direction is upward.) (a) Calculate its velocity (in m/s) just before it strikes the floor (b) Calculate its velocity (in m/s) just after it leaves the floor on its way back up(c) Calculate its acceleration (in m/s) during contact with the floor if that contact lasts 0.0800 ms (d) How much (in ) did the ball compress...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT