A particle is moving in a circular orbit with constant speed. Select wrong alternate

1. Its linear momentum is conserved

2. Its angular momentum is conserved

3. It is moving with variable velocity

4. It is moving with variable acceleration

If the linear momentum is increased by 50%, the kinetic energy will increase by

1.  50%

2.  100%

3.  125%

4.  25%

If the kinetic energy of a body increases by 0.1%, the percent increase of its momentum will be 

1.  0.05%

2.  0.1%

3.  1.0%

4.  10%

A particle of mass m moving with velocity u makes an elastic one-dimensional collision with a stationary particle of mass m. They are in contact for a very short time T. Their force of interaction increases from zero to F₀ linearly in time T/2 and decreases linearly to zero in further time T/2. The magnitude of F₀ is:

(1) mu/T

(2) 2mu/T

(3) mu/2T

(4) None of these

A force of 50 dynes is acted on a body of mass 5 g which acts for an interval of 3 seconds, then impulse is 

(1) 0.15 × 10^–3 N-s

(2) 0.98 × 10^–3 N-s

(3) 1.5 × 10^–3 N-s

(4) 2.5 × 10^–3 N-s

In an explosion a body breaks up into two pieces of unequal masses. In this 

(1) Both parts will have numerically equal momentum

(2) Lighter part will have more momentum

(3) Heavier part will have more momentum

(4) Both parts will have equal kinetic energy

Two bodies of masses m₁ and m₂ have equal kinetic energies. If p₁ and p₂ are their respective momentum, then ratio p₁ : p₂ is equal to 

(1) $m_1:m_2$

(2) $m_2:m_1$

(3) $\sqrt{m_1}:\sqrt{m_2}$

(4) $m_1^2:m_2^2$

A light and a heavy body have equal momenta. Which one has greater K.E 

(1) The light body

(2) The heavy body

(3) The K.E. are equal

(4) Data is incomplete

If the K.E. of a body is increased by 300%, its momentum will increase by 

(1) 100%

(2) 150%

(3) $\sqrt{300}\%$

(4) 175%

A light and a heavy body have equal kinetic energy. Which one has a greater momentum ? 

(1) The light body

(2) The heavy body

(3) Both have equal momentum

(4) It is not possible to say anything without additional information