Assertion: The average velocity of the object over an interval of time is either smaller then or equal to the average speed of the object over the same interval. Reason: Velocity is a vector quantity and speed s a scalar quantity.A. If both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true but reason is false.D. If the assertion and reason both are false

Assertion: The average velocity of the object over an interval of time

1.	Assertion: The average velocity of the object over an interval of time is either smaller then or equal to the average speed of the object over the same interval. Reason: Velocity is a vector quantity and speed s a scalar quantity.A. If both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true but reason is false.D. If the assertion and reason both are false
Answer» Correct Answer - A

Discussion

No Comment Found

Related InterviewSolutions

A bus is moving with a speed of `10 ms^-1` on a straight road. A scooterist wishes to overtake the bus in `10 s`. If the bus is at a distance of `1 km` from the scooterist with what speed should the scooterist chase the bus ?A. `20 ms^(-1)`B. `40 ms^(-1)`C. `25 ms^(-1)`D. `10 ms^(-1)`
A particle starts its motion from rest under the action of a constant force. If the distance covered in first `10 s` is `s_1` and the covered in the first `20 s` is `s_2`, then.A. `s_(2) = 2 s_(1)`B. `s_(2) = 3 s_(1)`C. `s_(2) = 4 s_(1)`D. `s_(2) = s_(1)`
A body is moving from rest under constant acceleration and let `S_1` be the displacement in the first `(p - 1)` sec and `S_2` be the displacement in the first `p` sec. The displacement in `(p^2 - p + 1)` sec. will beA. `S_(1) +S_(2)`B. `S_(1)S_(2)`C. `S_(1) -S_(2)`D. `S_(1)//S_(2)`
Water drops fall at regular intervals from a tap 5 m above the ground. The third drop is leaving the tap, the instant the first drop touches the ground. How far above the ground is the second drop at that instant. `(g = 10 ms^-2)`A. `2.50m`B. `3.75 m`C. `4.00m`D. `1.25m`
Velocity-time curve for a body projected vertically upwards is 0 times (s)A. ParabolaB. EllipseC. HyperbolaD. Straight line
A person travels along a straight road for the first half length with a velocity `v_(1) ` and the second half length with velocity ` v_(2)`. What is the mean velocity of the person ?A. `v_(1)v_(2)`B. `(v_(2)^(2))/(v_(1)^(2))`C. `(v_(1)+v_(2))/(2)`D. `(2v_(1)v_(2))/(v_(1)+v_(2))`
A train is moving due east and a car is moving due north with equal speeds. A passenger in the train finds that the car is moving towardsA. East-north directionB. West-north directionC. South-east directionD. None of these
A body is moving with velocity `30 m//s` towards east. After `10 s` its velocity becomes `40 m//s` towards north. The average acceleration of the body is.A. `7m//s^(2)`B. `sqrt(7)m//s^(2)`C. `5m//s^(2)`D. `1m//s^(2)`
A man goes 10 m towards North, then 20 m towards east then displacement isA. 22.5 mB. 25mC. 25.5mD. 30m
A body is thrown vertically upwards from the ground. It reaches a maximum height of `20 m` in `5s`. After what time it will reach the ground from its maximum height position ?A. `2.5 s`B. `5s`C. `10s`D. `25s`

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment