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QUESTION 3 A 60-kg (including the passenger) sled is subject to a net force of 20...
Question: At one instant, a 17.5-kg sled is moving over a horizontal surface of snow at 3.50 m/s. After 8.75 s has elapsed, the sled stops. Use a momentum approach to find the average friction force acting on the sled while it was moving. Please check my work. If it is incorrect please provide detail. Sled mass (m) = 17.5kg moving over a horizontal surface initial velocity of (U) = 3.5 m/s Initial momentum of the sledge (P1)=mU (P1)=(17.5kg)(3.50 m/s)...
I need help with question 6 and 8, please. Thanks so much! :) wa 3 the 5. The combined weight of a motorboat and its load is 480 egu pounds. After starting from rest at t= 0, the motor exerts a dow constant force of 30 pounds on the boat in its linear direction of of s motion. If the total resistance (in pounds) that the boat encounters (bu as it moves along its path is numerically equal to 3v12,...
Question 1: Motion on a horizontal plane [25] On a horizontal plane, a force of 58 N in the horizontal direction acts on an object of mass 10 kg. (1) Find the magnitude of the normal force N acting on the object from the plane. (2) Neglecting friction, find the magnitude of the acceleration a of the object. (3) Assuming that the coefficient of friction between the object and the plane is 0.50, find the magnitude of the acceleration a...
(non calculus based physics) Question 1 An Olympic weight lifter lifts an 1800 N set of weights from the ground to a vertical distance of 2.20 m above his head. Assuming he moves the weights at constant speed, how much work does the weight lifter do? Question 2 A 4.5 kg trunk, initially at rest, takes 2.0 s to slide 2.8 m down a rough 25° slope. Calculate: the work performed by the force of gravity. the amount of mechanical...