Advertisements
Advertisements
Question
Which of the following statement is not correct for an object moving along a straight path in an accelerated motion?
Options
Its speed keeps changing
Its velocity always changes
It always goes away from the earth
A force is always acting on it
Solution
It always goes away from the earth
Explanation:
An object moving along a straight path in an accelerated motion does not always go away from the earth.
APPEARS IN
RELATED QUESTIONS
Give one example in the case where the force is of contact.
State the effects of a force applied on a non-rigid and a rigid body. How does the effect of the force differ in the two cases?
Give one example in the given cases:
A force stops a moving body
Complete the following sentence:
The mass of a body remains constant till the velocity of the body is ..........
Newton's second law of motion applicable in all condition is:
(a) `F = (Δp)/(Δt)`
(b) F = ma
(c) `F = M (Δv)/(Δt)`
(d) all three
A body of mass 1.5 kg is dropped from a height of 12 m. What is the force acting on it during its fall? (g = 9.8 ms-2)
A truck of mass `5 xx 10^3` kg starting from rest travels a distance of 0.5 km in 10 s when a force is applied on its calculate:
1) the acceleration acquired by the truck and
2) the force applied
A ball was set rolling on a large table. If its ______ is to be changed, a ______ will have to be applied on it.
Give two examples to verify that a force changes the shape of a body.
Assertion: Force is defined as a push or pulls acting on a body.
Reason: CGS unit of force is the newton.