A 1.00-kilogram block is held at rest on a frictionless plane inclined at 30.° to the horizontal. 1:00 kg 2.00 m 30.° horizontal 79. The block is released and slides down the length of the incline. Determine the block's kinetic energy at the bottom of the incline. 80. If the angle between the plane and the horizontal is increased, the magnitude of the force required to hold the block at rest on the incline will (1) decrease (2) increase (3) remain the same 81. As the block slides down the incline, the sum of its gravitational potential energy with respect to the horizontal and kinetic energy (1) decreases (2) increases (3) remains the same

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: