ZuoTi.Pro
Question

A boy is running outwards at a constant speed of 2 m/s along a radial line...

A boy is running outwards at a constant speed of 2 m/s along a radial line on a merry-go-round platform. The platform is rotating at the rate of 20 revolutions per minute. What is the magnitude of the acceleration (in m/s2) acting on the boy when he is 1m away from the centre?

engineering   Mechanical-Engineering   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
A boy is running outwards at a constant speed of 2 m/s along a radial line...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • 10. A 322-Ibm man walks with a velocity v. = 6 ft/s along the straight radial...

    10. A 322-Ibm man walks with a velocity v. = 6 ft/s along the straight radial line on a rotating merry-go-round shown. If the merry-go-round is rotating with constant angular velocity of 0.5 rad/s, what is the magnitude of the in-plane force acting on the man when he is 8 ft from the center of the disk? A. 63.2 lbf B. 10.2 lbf C. 64.4 lbf D. 50.0 lbf E. None of the above

  • Starting from rest, the boy runs outward in the radial direction from the center of the...

    Starting from rest, the boy runs outward in the radial direction from the center of the platform with a constant acceleration of 0.5 m/s2. If the platform is rotating at a constant rate theta = 0.2 rad/s, determine the radial and transverse components of the velocity and acceleration of the boy when t = 3 s. Neglect his size.

  • A 90-kg merry-go-round of radius 2.0 m is spinning at a constant speed of 20 revolutions...

    A 90-kg merry-go-round of radius 2.0 m is spinning at a constant speed of 20 revolutions per minute. A kid standing on the ground decides to bring the merry-go-round to rest and applies a force of 10.0 N tangentially to the merry-go-round. If the merry-go-round is modelled as a solid cylinder, (A) calculate its moment of inertia. (B) What is the angular acceleration of the merry-go-round? (C) How many revolutions will the merry-go-round complete until it finally stops? 1) [25...

  • Ann, running with a speed of 4.00 m/s along a straight track, passes Beth who is...

    Ann, running with a speed of 4.00 m/s along a straight track, passes Beth who is stationary. Ann continues to run with the same speed for another 600 m. As soon as Ann passes her, Beth starts running with a constant acceleration of 0.045 m/s2. (a) When Ann is at the 600 m mark, where is Beth? (b) How fast is Beth running at that time? At this time, Ann starts accelerating with a constant acceleration. She continues to accelerate...

  • 2. A car is driving at constant angular speed along a 20 m radius circular track....

    2. A car is driving at constant angular speed along a 20 m radius circular track. The car completes one revolution of the track in 10 seconds. Calculate: (i) The (tangent) speed of the car. 12.6 m/s (ii) The angular speed of the car. 0.63 1/s or 0.63 rad/s (iii) The centripetal acceleration of the car. 7.9 m/s2 (iv) The RPM (i.e. revolutions per minute) of the car. 6 RPM THE ANSWERS ARE IN BOLD, COULD YOU PLEASE SHOW THE...

  • Q3 At a given instant, the merry-go-round is rotating with an angular velocity w = 20...

    Q3 At a given instant, the merry-go-round is rotating with an angular velocity w = 20 rpm while the child is moving radially outward at a constant rate of 0.7 m/s. Assuming that the angular velocity of the merry-go- round remains constant, i.e.. = 0, determine the magnitudes of the speed and of the acceleration of the child when he is 0.8 m away from the spin axis. 04. Determine the magnitude of the ag and ag at the instant...

  • A child pushes her friend (m = 25 kg) located at a radius r = 1.5...

    A child pushes her friend (m = 25 kg) located at a radius r = 1.5 m on a merry-go-round (rmgr = 2.0 m, Imgr = 1000 kg*m2) with a constant force F = 90 N applied tangentially to the edge of the merry-go-round (i.e., the force is perpendicular to the radius). The merry-go-round resists spinning with a frictional force of f = 10 N acting at a radius of 1 m and a frictional torque τ = 15 N*m...

  • A sprinter is running at a speed of 9.30 m/s, then accelerates at a constant rate...

    A sprinter is running at a speed of 9.30 m/s, then accelerates at a constant rate of 1.37 m/s2 for the last 9.70 m of the race. What is his final speed as he crosses the finish line?

  • a) A man jumps off the roof of an office building onto a trampoline 30 m...

    a) A man jumps off the roof of an office building onto a trampoline 30 m below. His speed is 5 m/s when he umps from the roof and his mass (with all of her gear) is 60 kg. How high will he go when he bounces back up from the trampoline? You can assume his speed at the top of his bounce is zero. b) Describe the changes in mechanical energy that take place during his jump. c) A...

  • A sprinter is running at a speed of 8.70 m/s, then accelerates at a constant rate...

    A sprinter is running at a speed of 8.70 m/s, then accelerates at a constant rate of 2.65 m/s2 for the last 9.80 m of the race. What is his final speed as he crosses the finish line? NumberUnits How long did it take him to run the last 9.80 m of the race? NumberUnits

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