An object of mass 2 kg is sliding with a constant velocity of 4 m/s on a frictionless horizontal table. The force required to keep the object moving with the same velocity is c. 2 N a. 32 N b. ON d. 8 N
Question
An object of mass 2 kg is sliding with a constant velocity of 4 m/s on a frictionless horizontal table. The force required to keep the object moving with the same velocity is c. 2 N a. 32 N b. ON d. 8 N
Solution
The answer is b. 0N.
Here's why:
According to Newton's first law of motion, an object in motion will stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
In this case, the object is sliding on a frictionless surface, which means there are no unbalanced forces acting on it (like friction or air resistance). Therefore, it will continue to move at a constant velocity without any additional force required.
So, the force required to keep the object moving with the same velocity is 0N.
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