Question 616:

• JAMB 1990

What is the average velocity of the sprinter whose velocity time graph is as shown above

A. 85.0ms^-1
B. 17.0ms^-1
C. 8.5ms^-1
D. 1.7ms^-1

Question 617:

• JAMB 1991

Which of the following is the most suitable for use as an altimeter?

A. A mecury barometer
B. A fortin barometer
C. A mecury manometer
D. An aneroid barometer

Question 618:

• JAMB 1991

Which of the following is the most suitable for use as an altimeter?

A. A mecury barometer
B. A fortin barometer
C. A mecury manometer
D. An aneroid barometer

Question 619:

• JAMB 1991

A body of weight W N rest on a smooth plane inclined at an angle\(\theta\)^o to the horizontal. What is the resolved part of the weight in Newtons along the plane?

A. W sin\(\theta\)
B. W cos\(\theta\)
C. W sec\(\theta\)
D. W tan\(\theta\)

Question 620:

• JAMB 1991

A small metal ball thrown vertically upwards from the top of a tower with an initial velocity of 20ms^-1. If the ball took a total of 6s to reach ground level, determine the height of the tower [g = 10ms^-2]

A. 60m
B. 80m
C. 100m
D. 120m