Motion - Jamb Physics Past Questions and Answers

Question 96:

• JAMB 2000

I. The frictional force is independent of the area of the surfaces in conduct
II. The frictional force depends on the nature of the surfaces in contact
III. The frictional force depends on the speed of sliding
IV. The frictional force is directly proportional to the normal reaction.
Which combination of the above is true of sliding friction?

A. I, III and IV
B. I, II and IV
C. I, II and III
D. II, III and IV

Question 97:

• JAMB 2000

The velocity y of a particle in a time t is given by the equation
y = 10 + 2t²
Find the instantaneous acceleration after 5 seconds

A. 60 ms^-2
B. 20 ms^-2
C. 15 ms^-2
D. 10 ms^-2

Question 98:

• JAMB 2000

A simple pendulum has a period of 17.0s. When the length is shorten by 1.5m, its period is 8.5s. Calculate the original length of the pendulum

A. 4.0 m
B. 3.0 m
C. 2.0 m
D. 1.5 m

Question 99:

• JAMB 2001

If a spherical metal bob of radius 3cm is fully immersed in a cylinder containing water and the water level rises by 1cm, what is the radius of the cylinder?

A. 12cm
B. 1cm
C. 3cm
D. 6cm

Question 100:

• JAMB 2001

The resultant of two forces acting on an object is maximum if the angle between them is

A. 45°
B. 0°
C. 90°
D. 180°