How much work must you do to push a 11.0 kg block of steel across a steel table (= 0.6) at a steady speed of 1.20 m/s for 6.60 s ? %3D Express your answer with the appropriate units. HẢ ? W push = Value Units Submit Request Answer Part B What is your power output while doing so?

Ayoung woman on a skateboard is pulled by a rope attached to a bicycle. The velocity of the skateboarder is v = (4.6 m/s )ê and the force exerted on her by the rope is F = (17 N)â + (12 N)ỹ. Part A Find the work done on the skateboarder by the rope in 25 seconds. Express your answer using two significant figures. ? W = J Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Review your calculations and make sure you round to 2 significant figures in the last step. Part B Assuming the velocity of the bike is the same as that of the skateboarder, find the work the rope does on the bicycle in 25 seconds. Express your answer using two significant figures. Πνα ΑΣφ ? W = J

Part A How much work must you do to push a 13 kg block of steel across a steel table at a steady speed of 1.3 m/s for 5.4 s? The coefficient of kinetic friction for steel on steel is 0.60. Express your answer in joules. %3D push = J Submit Request Answer Part B What is your power output while doing so? Express your answer in watts. ΑΣφ P = W %3D Submit Request Answer Next >

Part A A child pulls a sled with constant speed pulling the rope at an angle of 30° to the horizontal and drags the sled for 100 m. The friction coefficient is 0.40. What work did the friction force do if the sled's mass is 5.1 kg? Express your answer with the appropriate units. W = 1624.2 J Ć ?