Post Utme Economics Past Questions and Answers

Question 951:

Which of the following is a vector quantity?

A. Distance
B. Speed
C. Energy
D. Weight

Question 952:

Calculate the work done by a bricklayer who lifted a cement block of mass \(10 \mathrm{~kg}\) from the floor to a height of \(2.5 \mathrm{~m}\) (acceleration due to gravity \(=9.8 \mathrm{~m}^{-2}\) )

A. \(294.0 \mathrm{~J}\)
B. \(245.0 \mathrm{~J}\)
C. \(30.0 \mathrm{~J}\)
D. \(25.0 \mathrm{~J}\)

Question 953:

Find the potential energy of a diver of mass \(75 \mathrm{~kg}\) at a height of \(10 \mathrm{~m}\) above a swimming pool (acceleration due to gravity of \(9.8 \mathrm{~ms}^{-2}\) )

A. \(7.35 \mathrm{KJ}\)
B. \(9.41 \mathrm{KJ}\)
C. \(8.82 \mathrm{KJ}\)
D. \(0.75 \mathrm{KJ}\)

Question 954:

Determine the wavelength of fundamental note of a guitar string of length \(65 \mathrm{~cm}\) long ____________

A. \(65 \mathrm{~cm}\)
B. \(260 \mathrm{~cm}\)
C. \(195 \mathrm{~cm}\)
D. \(130 \mathrm{~cm}\)

Question 955:

Find, the combined resistance of two wires each of resistance 8-ohms when they are connected in parallel ____________

A. 16-ohms
B. 4-ohms
C. 20-ohms
D. 12-ohms