Back to MOTION IN A STRAIGHT LINE

NEET UG PHYSICS MCQ: MOTION IN A STRAIGHT LINE

1 Medium

1 of 1

Analyzing +4 | -1

Assertion: The average speed of an object may be equal to arithmetic mean of individual speed.

Reason: Average speed is equal to total distance travelled per total time taken.

View answer and explanation

Correct option: B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

Option B (If both assertion and reason are true but reason is not the correct explanation of the assertion) is correct because both statements are true, but the reason doesn't explain why the average speed may be equal to the arithmetic mean of individual speeds.

More Questions from MOTION IN A STRAIGHT LINE

Practice All Chapter MCQs →

Velocity-time curve for a body projected vertically upwards is Two cars A and B approach each other at the same speed, then what will be the velocity of A if velocity of B is

8 \mathrm{~m} / \mathrm{s}

? Two cars are moving in the same direction with a speed of

30\mathrm{km}{\mathrm{h}^{ - 1}}

. They are separated from each other by 5 km. Third car moving in the opposite direction meets the two cars after an interval of 4 min. What is the speed of the third car? A body is projected vertically up with ‘u’. Its velocity at half its maximum height is A scooter starts from rest have an acceleration of

1 \mathrm{~ms}^{-2}

150 \mathrm{~m}

behind it starts from rest with an acceleration of

2 \mathrm{~ms}^{-2}

. After how much time, the car catches up with the scooter? A motor vehicle travelled the first one third of a distance ‘S ’ at a speed of

{V_1} = 10\,kmph

, the second one third at a speed of

{V_2} = 20\,kmph

and the last one third at a speed of

{V_3} = 60\,kmph

determine the mean speed of the vehicle over the entire distance ‘S ’