GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a car speeding up
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a leaf blowing in the wind
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a car moving at a constant speed
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a tennis ball bouncing back and forth between players.
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Detailed explanation-1: -If a body is acted upon by balanced forces, then the net force on it zero which means no acceleration. When there is no acceleration the car will neither change its speed nor its direction and hence a car moving with constant velocity is an example of balanced force.
Detailed explanation-2: -The reverse logic is also true: if an object has a constant velocity, then the forces are balanced. And if an object is speeding up or slowing down, the forces are unbalanced.
Detailed explanation-3: -So a car experiencing a balanced force will move in a straight line with constant speed. This means that all the forces are canceling each other out. This scenario is described by Newton’s first law of motion, where there is a zero net force on the object. Thus, resulting in a constant velocity.
Detailed explanation-4: -When two forces are the same strength but act in opposite direction, they are called balanced forces. Again, tug-of-war is a perfect example. If the people on each side of the rope are pulling with the same strength, but in the opposite direction, the forces are balanced. The result is no motion.