Question 571:

• JAMB 1990

Which of the following is a fundamental unit?

A. Newton
B. Watt
C. Joule
D. Second

Question 572:

• JAMB 1990

Which of the following is a fundamental unit?

A. Newton
B. Watt
C. Joule
D. Second

Question 573:

• JAMB 1990

A car moving with a speed of 90kmh-1 was brought uniformly to rest by the application of the brakes in 10s. How far did the car travel after the brakes were applied?

A. 125m
B. 150m
C. 250m
D. 15km

Question 574:

• JAMB 1990

A particle of mass M which is at rest splits up into two. If the mass and velocity of one of the particles are m and v respectively, calculate the velocity of the second particle

A. \(\frac{mv}{M}\)
B. \(\frac{Mv}{M - m}\)
C. \(\frac{mv}{M + m}\)
D. \(\frac{mv}{M - m}\)

Question 575:

• JAMB 1990

Which of the following statements are correct about an object in equilibrium under parallel forces? i. the total clockwise moments of the forces about any point equals the total anti-clockwise moments about the same point. ii. the total forces in one direction equals the total forces in the opposite direction. iii. the resolved components along the x-axis equals the resolved components along the y-axis.

A. I and ii only
B. I and iii only
C. Ii and iii
D. I, ii, and iii only