A. acceleration is const
B. acceleration is variable
C. acceleration is zero
D. velocity is zero
Motion and Force
The dimension of force is____________________?
A. MLT-2
B. ML2T-2
C. ML2T2
D. ML-2T-2
When two bodies move toward each other with constant speeds the distance between them decreases at the rate of 6m / sec. If they move in the same direction the distance between them increases at the rate of 4m/sec. Then their speeds are________________?
A. 5m/s, 1m/s
B. 3m/s, 3m/s
C. 6m/s, 1m/s
D. 4m/s, 2m/s
Time rate of change of momentum is equal to____________________?
A. force
B. impulse
C. velocity
D. both A and C
Area under velocity time graph represent_____________________?
A. force
B. displacement
C. distance
D. acceleration
Distance covered by a freely falling body in 2 seconds will be__________________?
A. 4.9 m
B. 19.6 m
C. 39.2 m
D. 44.1 m
When a body moves in a straight line then its displacement coincides with__________________?
A. distance
B. force
C. acceleration is zero
D. both A and B
Which shows the correct relation between time of flight T and maximum height H ?
A. H=gT2/8
B. H=8T2/g
C. H=8g/T2
D. H=gT2
3rd law of motion explains______________________?
A. effect of force
B. existence of a force
C. existence of two forces
D. existence of pair of forces in nature
The range of the projectile at 30 deg and 60 deg are__________________?
A. equal to 45 deg
B. equal to 90 deg
C. equal to each other
D. none of the above
