Physics 1987 Jamb Past Questions and Answers

Question 1 :

• JAMB 1987

Which of the following units is equivalent to kgms^-1?

A. Ns^-1
B. Nms^-1
C. Ns
D. Js^-1

Question 2 :

• JAMB 1987

Which of the following units is equivalent to kgms^-1?

A. Ns^-1
B. Nms^-1
C. Ns
D. Js^-1

Question 3 :

• JAMB 1987

A jet engine develops a thrust of 270Ns when the velocity of the exhaust gases relative to the engine is 300ms^-1. What is the mass of the material ejected per second?

A. 81.00kg
B. 9.00kg
C. 0.90kg
D. 0.09kg

Question 4 :

• JAMB 1987

A man walks 8km north and then 5km in a direction 60^o east of north. Find the distance from his starting point

A. 11.36km
B. 12.36km
C. 13.00km
D. 14.36km

Question 5 :

• JAMB 1987

An elevator of mass 4800kg is supported by a cable which can safely withstand a maximum tension of 60 000N. The maximum upward acceleration the elevator can have is

A. 2.5ms^-2
B. 5.0ms^-2
C. 7.5ms^-2
D. 10.0ms^-2