Newton's Second Law Web Search Notes
http://www.physicsclassroom.com/Class/newtlaws/u2l3a.cfm
Newton's first law states that objects in motion will stay in motion and objects at rest will stay at rest due to the fact that the forces are balanced.
Newton's first law states that objects in motion will stay in motion and objects at rest will stay at rest due to the fact that the forces are balanced.
Newton's second law states that when the forces acting on an object are not balanced, the acceleration (change in speed and/or direction) is completely dependent on the object's mass or the net force.
the net force is the vector sum of all the forces.
the net force is the vector sum of all the forces.
1. Determine the accelerations that result when a 12-N net force is applied to a 3-kg object and then to a 6-kg object.
3-kg = 4m/s^2
6-kg = 2m/s^2
2. A net force of 15 N is exerted on an encyclopedia to cause it to accelerate at a rate of 5 m/s2. Determine the mass of the encyclopedia.
m = 3 kg
3. Suppose that a sled is accelerating at a rate of 2 m/s2. If the net force is tripled and the mass is doubled, then what is the new acceleration of the sled?
3m/s^2
4. Suppose that a sled is accelerating at a rate of 2 m/s2. If the net force is tripled and the mass is halved, then what is the new acceleration of the sled?
12m/s^2
3-kg = 4m/s^2
6-kg = 2m/s^2
2. A net force of 15 N is exerted on an encyclopedia to cause it to accelerate at a rate of 5 m/s2. Determine the mass of the encyclopedia.
m = 3 kg
3. Suppose that a sled is accelerating at a rate of 2 m/s2. If the net force is tripled and the mass is doubled, then what is the new acceleration of the sled?
3m/s^2
4. Suppose that a sled is accelerating at a rate of 2 m/s2. If the net force is tripled and the mass is halved, then what is the new acceleration of the sled?
12m/s^2