Question 4: Determine the energy or work in the following situations. (K:3,A:3) A. A 3.50 kg of body moving at a speed of 4.00 m/s. B. A 6.00 kg of an object moved up by 8.00 m. C. A friction force of 40.0 N acting over a distance of 3.50 m. Question 5: A rollercoaster cart initially has a velocity of 3.00 m/s at a certain height of 30.0 m at A relative to point B. Assume the tracks are frictionless, A. determine the maximum value of radius of the loop at D so the cart will pass through a circle with a velocity of 12.0 m/s. (I.2,C:1) B. At the exit E, the final velocity was 21.0 m/s, what is the height at point E? (A:2,C:1) A \\ E Question 1: A student push the cart on a friction surface horizontally forward for 2.00 m. Sketch the free body diagram, then state the force that does (i) postive work (i1) negative work and (iii) zero work. (C:3) Question 2: A force is applied to a body horizontally according to the following graph for 12.0 m. Assume the friction force acting on the 2.00 kg of body is 10.0 N, determine the final velocity of this mass if it has an initial velocity of 3.00 m/s. (K:2, 1:2) 024 6 8101 Distance (m) Question 3: An object with mass 30.0 kg was pulled with a force of 82.0 N with an angle of 30 for a total distance of 10.0 m. If the object is travelling with a constant velocity. A. Determine the coefficient of kinetic friction of the floor. (I:3) B. Find the amount of work done by the applied force. (A:1) C. Find the amount of work done by the frictional force. (A:1) D. Find the network done on the object. (A:1)