GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A body of mass 1 kg traveling with a speed 3 m/s collides with a body of mass 0.5 kg moving with a speed of 5 m/s. Both bodies are moving in the same direction. If they stick together after the collision, what speed do the two bodies have after the collision?
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3.67 m/s
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4.67 m/s
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-3.67 m/s
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-4.67 m/s
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Explanation:
Detailed explanation-1: -What is the kinetic energy of a body of mass 1kg moving with a speed of 2m/s? Here, mass of the body m=1 kg. Therefore, kinetic energy of the body is 2 J.
Detailed explanation-2: -Solution. So, the kinetic energy of the moving object is 2 J .
Detailed explanation-3: -Given: Mass (m)= 1 kg. Velocity (v)= 10 m/s. ∴The Kinetic Energy of the object is 50 J.
Detailed explanation-4: -The correct answer is option 3) i.e. 0.5 N. CONCEPT: Linear momentum(p): It is the product of mass(m) and velocity(v) of an object i.e.
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