1. (6 points) An object having a mass of 7 kg and a velocity of (8 1-6j)m/s. What is the kinetic energy of the object? 2

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1 6 Points An Object Having A Mass Of 7 Kg And A Velocity Of 8 1 6j M S What Is The Kinetic Energy Of The Object 2 1 (54.93 KiB) Viewed 61 times

1. (6 points) An object having a mass of 7 kg and a velocity of (8 1-6j)m/s. What is the kinetic energy of the object? 2. A force of 40 N is applied to a 4 kg block to move it 6 m, as shown in the figure. If the surface is frictionless, determine the work done on the block by (a) (5 points) the applied force (b) (5 points) the normal force exerted by the surface (c) (5 points) the gravitational force, and (d) (5 points) the net force on the block. 40 N 30° 6 m 3. (10 points) A 2 kg block is released from the top of a frictionless incline surface as shown. Find the speed of the block when it reaches the ground. 20° Ground 4 m