JEE · NEET Previous Year Question
An object with mass 500 g moves along x -axis with speed . The force acting on the object is:
Topic: JEE PYQ
Answer: B. Full step-by-step solution below.
- A8 N
- B4 N
- C5 N
- D6 N
Correct answer: B
Solution
(b)To find the force acting on the object, we use the formula , where is the force, is the mass, and is the acceleration.
To find the force acting on the object, we use the formula , where is the force, is the mass, and is the acceleration.
The velocity is given as .
Squaring both sides, we have .
Differentiate with respect to :
Solving for , we find:
The force is then calculated as:
Thus, the force acting on the object is 4 N.
The velocity is given as .
Squaring both sides, we have .
Differentiate with respect to :
Solving for , we find:
The force is then calculated as:
Thus, the force acting on the object is 4 N.
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