Question 846:

• JAMB 1995

The acceleration of the system show above is

A. 2ms^-2
B. 4ms^-2
C. 6ms^-2
D. 8ms^-2

Question 847:

• JAMB 1995

A body of mass 40kg is being dragged along the floor by a rope inclined at 60 degrees to the horizontal. The frictional force between the box and the floor is 100N and the tension on the rope is 300N. How much work is done by dragging the box for a distance of 4m

A. 680J
B. 400J
C. 200J
D. 100J

Question 848:

• JAMB 1995

The fig above shows two similar bulbs X and Y connected to suitable power supply with F as an appropriate fuse rating, if the filament of X breaks then the

A. Brightness Of Y will reduce
B. Brightness Of Y will remain constant
C. Brightness Of Y will increase
D. Fuse F will blow

Question 849:

• JAMB 1997

At what respective values of X, Y and Z would the unit of force, the newton, be dimensionally equivalent to M^xL^yT^z?

A. -1, 1, 2
B. 1, 1, -2
C. 1, -1, 2
D. -1, 1, -2

Question 850:

• JAMB 1997

At what respective values of X, Y and Z would the unit of force, the newton, be dimensionally equivalent to M^xL^yT^z?

A. -1, 1, 2
B. 1, 1, -2
C. 1, -1, 2
D. -1, 1, -2