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3246

A body is uniformly accelerated from rest. Which of the following quantities vary/varies linearly with the square of the time?

I. Displacement
II. Velocity
III. Momentum

A. I only
B. II only
C. III only
D. I and II only
E. II and Ill only

View Answer & Discuss (3) NECO 2002

3247

A short response time is obtained in a liquid-in-glass thermometer when the

A. bulb is large and thick-walled
B. bulb is small and thick-walled
C. stem is long and thin
D. liquid is of high density and the bulb is large
E. bulb is thin-walled and the liquid is a good conductor of heat.

View Answer & Discuss NECO 2002

3248

A body of mass M₁ moving with a velocity U collides with a stationary body of mass M₂ and both move with a common velocity V. If linear momentum is conserved, which expression correctly represents V?