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PHY101
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1. The path taken by a projectile is called _____

	--->> parabotic

	      elliptical

	      spherical

	      none of the above

2. A dog running at a spped of 32km/hr jumps into a stationary canoe on the river Niger at Lokoja. The dog's mass is 14kg and that of the canoe plus the rower is 160kg. Let us assume that the water surface is frictionless, what is the speed of the canoe after collision?

	      72m/s

	--->> 0.72m/s

	      7200m/s

	      720m/s

3. The motion of a particle is given by x=a+bt2, where a = 20cm, b=4cms2 find the displacement of the particle in the time intervan between t1=2s and t2=5s

	      90cm

	      80cm

	      75cm

	--->> 84cm

4. Which of the following combinations is totally vector quantities?

	--->> force, weight, velocity, work & momentum

	      speed, work, length, mass & acceleration

	      distance, speed, mass, temperature & volume

	      mass, velocity, length, acceleration & speed

5. A ball projected horizontally with velocity Vo of magnitude 8mls. Find its vertical component of the velocity after 1/4s

	      2.8m/s

	      8m/s

	--->> 2.5m/s

	      3m/s

6. The S.I. unit of moment of inertia is

	      Tesla

	      N/m2

	--->> kg m2

	      Pa

7. The reluctance of a body to go in to motion when at rest and to stop while in uniform motion in known as

	      Static

	--->> Inertia

	      Kinetic

	      Instability

8. The dimension of work done is

	      M2LT-2

	      M3L3T-2

	--->> ML2T-2

	      M-1L3T-2

9. Range is maximum when the angle of projection is _____

	      90 degrees

	      40 degrees

	      15 degrees

	--->> 45 degrees

10. If P=2i + 4j + 3k and Q = i +5j - 2k, find P x Q

	      23i+7j+6k

	--->> 23i+7j+6k

	      6i-23j+7k

	      7i-6j+23k