Motion - Jamb Physics Past Questions and Answers

Question 146:

• JAMB 2012

A stream is flowing at 0.75ms\(^{-1}\) and a boat heading perpendicular for the stream landed at the opposite bank at an angle of 30°. Calculate the velocity of the boat.

A. 1.50ms^-1
B. 1.00ms^-1
C. 0.86ms^-1
D. 0.65ms^-1

Question 147:

• JAMB 2012

A rope is being used to pull a mass of 10kg vertically upward. Determine the tension in the rope if, starting from rest, the mass acquires a velocity of 4ms\(^{-1}\) in 8s [g = 10ms\(^{-2}\)]

A. 5N
B. 50N
C. 95N
D. 105N

Question 148:

• JAMB 2013

A simple pendulum of length 0.4m has a period of 2s. What is the period a similar pendulum of length 0.8m at the same place?

A. 8s
B. 4s
C. 2\(\sqrt{2}s\)
D. \(\sqrt{2}s\)

Question 149:

• JAMB 2013

A train with an initial velocity of 20ms^-1 is subjected to a uniform deceleration of 2m^-2. The time required to bring the train to a complete halt is?

A. 5s
B. 10s
C. 20s
D. 40s

Question 150:

• JAMB 2013

Calculate the apparent weight loss of a man weighing 70kg in an elevator moving downwards with an acceleration of 1.5ms^-2.
[g = 10ms^-2]

A. 686N
B. 595N
C. 581N
D. 105N