What is the work done by the man

Assignment Help Physics

Reference no: EM13509428

man pulls a block of mass m = 15 kg up an incline at a slow constant velocity for a distance of d = 4.5 m. The incline makes an angle q = 35° with the horizontal. The coefficient of kinetic friction between the block and the inclined plane is µk = 0.2.

a) What is the work Wm done by the man?

At the top of the incline, the string breaks and the block, assumed to be at rest when the string breaks, slides down a distance d = 4.5 m before it reaches a frictionless horizontal surface. A spring is mounted horizontally on the frictionless surface with one end attached to a wall. The block hits the spring, compresses it a distance L = 0.5 m, then rebounds back from the spring, retraces its path along the horizontal surface, and climbs up the incline.

b) What is the speed v of the block when it first reaches the horizontal surface?

c) What is the spring constant k of the spring?

d) How far up the incline d1 does the block rebound?

Reference no: EM13509428

Questions Cloud

Unemployment compensation taxes : the employer's payroll taxes on the payroll to be paid on December 31. Of the total payroll for the last week of the year, $35,000 is subject to unemployment compensation taxes

Find the magnitude of the impulse applied to it by the bat : Force of a Baseball Swing. A baseball has mass 0.145 kg. Find the magnitude of the impulse applied to it by the bat

Expalin factors that ellis quilting company should consider : Ellis Quilting Company makes blankets that it markets through a variety of department stores. It makes the blankets in batches of 1,000 units. Ellis made 20,000 blankets during the prior accounting period. The cost of producing the blankets is sum..

Summary of the goal by goldratt : Summary of The Goal by Goldratt.

What is the work done by the man : man pulls a block of mass m = 15 kg up an incline at a slow constant velocity for a distance of d = 4.5 m. The incline makes an angle q = 35° with the horizontal. What is the work Wm done by the man

What method yields the highest depreciation expense : What method yields the highest depreciation expense for 2013 and what method yields the most depreciation over the four-year life of the equipment?

Compute production for materials and conversion : Compute the equivalent units of production for MATERIALS AND CONVERSION.

Compute the angular velocity of the sphere : A solid, uniform sphere of mass 2.0 kg and radius 1.7 m rolls without slipping down an inclined plane of height 6.7 m. What is the angular velocity of the sphere

Obtain the average force exerted on the ball : a golf ball of mass .05 kg is at rest on the tee and has a velocity of 102 m/s immediately after being struck. what is the average force exerted on the ball

User Account

All Pages