Physics Past Questions and Answers

The slope of a straight-line velocity-time graph represents

A Uniform acceleration
B Uniform speed
C Total distance travelled
D Workdone

Question 1652:

A body is projected with an initial velocity U at an angle O to the horizontal. The time taken by it to reach its maximum height is given by the expression

A \(\frac{2u \text{sin}\theta}{g}\)
B \(\frac{u^2 \text{sin}^2\theta}{2g}\)
C \(\frac{u \text{sin}\theta}{g}\)
D \(\frac{u \text{sin}\theta}{2g}\)

Question 1653:

Which of the following statements describes a body in a stable equilibrium correctly?

A A person walking on a tight-rope
B Ball on a smooth horizontal table
C Ball resting on an inverted hemisphere bowl
D Ball in the middle of a nemispherical bowl

Question 1654:

In a school compound a girl walks 40km due east from the laboratory to the staff room to submit her report. Then she returns and walks 30m due north to her classroom. Determine the magnitude of her displacement from the10m laboratory

A 10m
B 35m
C 50m
D 70m

Question 1655:

Two strings each inclined at an angle 30^o to the horizontal are used to hold a bucket of water weighing 20N. Calculate the tension i n each string.

A 20\(sqrt{3}\)N
B 20N
C 10\(sqrt{3}\)N
D 10N