SATHEE: Laws of Motion - Result Question 4

Laws of Motion - Result Question 4

4. A body of mass $M$ hits normally a rigid wall with velocity $V$ and bounces back with the same velocity. The impulse experienced by the body is [2011]

(a) MV

(b) $1.5 M V$

(d) zero

Show Answer

Answer:

Correct Answer: 4. (c)

Solution:

$=$ change in momentum

$= M V - (- M V)$

$= 2 M V$

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Laws of Motion - Result Question 4

4. A body of mass M hits normally a rigid wall with velocity V and bounces back with the same velocity. The impulse experienced by the body is [2011]

Answer:

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4. A body of mass $M$ hits normally a rigid wall with velocity $V$ and bounces back with the same velocity. The impulse experienced by the body is [2011]