Which of the following statements describes a body in a stable equilibrium correctly?
a person walking on a tight-rope
ball on a smooth horizontal table
ball resting on an inverted hemisphere bowl
ball in the middle of a nemispherical bowl
Correct answer is D
No explanation has been provided for this answer.
The slope of a straight-line velocity-time graph represents
uniform acceleration
uniform speed
total distance travelled
workdone
Correct answer is A
No explanation has been provided for this answer.
The resultant force in a couple is
zero
infinite
the sum of the forces
the product of the forces
Correct answer is A
No explanation has been provided for this answer.