The 31 kg crate is moving downward at 18 m/s.The motor M pulls on the cable with a force of F, whichhas a magnitude that varies as shown on the graph.BFF (N)450150-t (s)What is the speed of the crate when t = 6 s?Give your answer with one decimal (or integer if you getan integer as an answer).Do not neglect the weight!

The mass of the crate is .The downward speed is

Answered: The 31 kg crate is moving downward at…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The ice-hockey puck with a mass of 0.25 kg has a velocity of 10 m/s before being struck by the hockey stick. After the impact the puck moves in the new direction shown with a velocity of 17 m/s. If the stick is in contact with the puck for 0.06 s, compute the magnitude of the average force F exerted by the stick on the puck during contact, and find the angle ß made by F with the x-direction. 10 m/s 15% Answers: F= i B = i 17 m/s N O
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The 40-kg crate is being hoisted by the motor. If at this instant shown the velocity of point P on the cable is 4 m/s and the speed is increasing at 2 m/s2 * what is the power input supplied to the motor if its efficiency is £ = 0.75? Neglect the mass of pulley and cable Vp ↓P = 4 m/s A Question 1: The 40-kg crate is being hoisted by the motor. If at this instant shown the velocity of point P on the cable is 4 m/s and the speed is increasing at 2 m/s², what is the power input supplied to the motor if its efficiency is = 0.75? Neglect the mass of pulley and cable. (a) 0.649 kW (b) 0.865 kW (c) 1.15 kW (d) 1.53 kW

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