Physics Past Questions and Answers

Which of the following is a fundamental unit?

A Newton
B Watt
C Joule
D Second

Question 572:

Which of the following is a fundamental unit?

A Newton
B Watt
C Joule
D Second

Question 573:

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:

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:

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