Question

Flag for follow-up A student runs to physics class with a speed of 7 m/s. If the student has 960 J of kinetic energy, what is
0 0
Add a comment Improve this question Transcribed image text
Answer #1

Sๆ” Given, Speed, v=7m/s 960 kinetic energy, K6= Let mass of her be m kg 80, KE = Ź mv2 Ź m (7) 960 m= 2x960 = 39.18 kg À 9 m

Add a comment
Know the answer?
Add Answer to:
Flag for follow-up A student runs to physics class with a speed of 7 m/s. If...
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
  • ils (1) A student is sitting motionless in physics class. What forces act on the student?...

    ils (1) A student is sitting motionless in physics class. What forces act on the student? Check all the correct answers. A) Gravity B) Normal Force C) Spring Force D) Air resistance E) The force of the student pushing on the chair (2) A block with a mass of 4 kg is sliding speed of 5 m/s. The presence of kinetic friction between the block and the surface results in a constant 4 N force acting on the block. How...

  • 11. An object has kinetic energy of 196 J. If its speed is 7 m/s, what...

    11. An object has kinetic energy of 196 J. If its speed is 7 m/s, what is its mass? A) 8 B) 56 C) 21.16601 D) 4.8

  • 12 A 60.0-kg woman who runs up a 3.00 m high flight of stairs in 3.50...

    12 A 60.0-kg woman who runs up a 3.00 m high flight of stairs in 3.50 s, starting from rest but having a final speed of 2.00 m/s? What is the final potential energy. A) 126 J B) 110W C) 153 J D) 120 J E) 140 J 13 A 100 g ball move upward with a velocity of 10 m/s from ground level in a free fall movement. What is the kinetic energy for the ball at ground level?

  • Gayle runs at a speed of 3.45 m/s and dives on a sled, initially at rest...

    Gayle runs at a speed of 3.45 m/s and dives on a sled, initially at rest on the top of a frictionless snow-covered hill. After she has descended a vertical distance of 5.00 m, her brother, who is initially at rest, hops on her back and together they continue down the hill. What is their speed at the bottom of the hill if the total vertical drop is 15.0 m? Gayle's mass is 52.0 kg, the sled has a mass...

  • Gayle runs at a speed of 4.30 m/s and dives on a sled, initially at rest...

    Gayle runs at a speed of 4.30 m/s and dives on a sled, initially at rest on the top of a frictionless snow-covered hill. After she has descended a vertical distance of 5.00 m, her brother, who is initially at rest, hops on her back and together they continue down the hill. What is their speed at the bottom of the hill if the total vertical drop is 15.0 m? Gayle's mass is 47.5 kg, the sled has a mass...

  • (5) Gayle runs at a speed of 4.49 m/s and dives on a sled, which is...

    (5) Gayle runs at a speed of 4.49 m/s and dives on a sled, which is initially at rest on the top of a frictionless snow.covered hill. After she has descended a vertical distance of 5.46 m, her brother, who is initially at rest, hops on her back and together they continue down the hill. What is their speed at the bottom of the hill if the total vertical drop is 16.6 m2 Gayle's mass is 51.4 kg, the sled...

  • You are walking to your physics class at speed 1.1 m/s with respect to the ground....

    You are walking to your physics class at speed 1.1 m/s with respect to the ground. Your friend leaves 2.0 min after you and is walking at speed 1.4 m/s in the same direction. How far does your friend travel before she catches up with you? Express your answer with the appropriate units.

  • A physics student pulls a block of mass m = 22 kg up an incline at...

    A physics student pulls a block of mass m = 22 kg up an incline at a slow constant velocity for a distance of d = 4.5 m. The incline makes an angle ? = 32° with the horizontal. The coefficient of kinetic friction between the block and the inclined plane is µk = 0.3. 1) What is the work Wm done by the student? 2) At the top of the incline, the string by which she was pulling the...

  • A 46.7 kg student runs down the sidewalk and jumps with a horizontal speed of 4.10...

    A 46.7 kg student runs down the sidewalk and jumps with a horizontal speed of 4.10 m/s onto a stationary skateboard. The student and skateboard move down the sidewalk with a speed of 3.86 m/s. a) Find the mass of the skateboard. Answer in units of kg b) How fast would the student have to jump to have a final speed of 6.54 m/s? Answer in units of m/s..

  • My Notes Ask Your Teacher A 60.0 kg sker with an initial speed of 110 scoasts...

    My Notes Ask Your Teacher A 60.0 kg sker with an initial speed of 110 scoasts up 2.50 m high rise as shown in the following figure 2.5 m Find her final speed at the top (ms), given that the coefficient of friction betw straight-line path as shown in the figure) her skis and the show is 0.0800. (Hint: Find the distance traveled up the incline assuming m/s Additional Materials Reading 5. -/16.66 points OSColPhys2016 7.2.WA.013. My Notes Ask Your...

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