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(b) kg.m/s
2
(c) kg.m/s
2
2
(d) N m /kg
Fill in the blanks: (AVERAGE)
1. ______________ is the quantity of motion possessed by a moving object.
2. Newton’s second law gives ______________ definition of force.
3. Momentum is a _________ quantity and its direction is given by the
direction of _____________.
ASSERTION AND REASONING: (BOARD)
a) Both assertion and reason are true and reason is the correct explanation.
b) Both assertion and reason are true and reason is not the correct explanation.
c) Assertion is true but reason is false.
d) Assertion is false but reason is true.
e) Both are false.
1. Assertion: Momentum is a vector quantity.
Reason: The direction of momentum is in the direction of velocity.
2. Assertion: Newton’s second law gives us qualitative definition of force.
Reason: Newton’s first law is a special case of Newton’s second law.
SUBJECTIVE
1. State Newton’s second law of motion and prove that Newton’s first law of motion
is a special case of Newton’s second law of motion. (HOTS)
2. Two objects A and B, having mass 100 kg and 75 kg, moving with velocity 40
km/hr and 6 km/hr respectively. Answer the following: (BOARD)
a.Which will have greater inertia?
b.Which will have greater momentum?
c.Which will stop first if equal negative acceleration is applied on both?
