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    A car is moving along a straight road with a uniform acceleration. It passes through two points P and Q seperated by a dis†an ce with velocity 30 km/hr and 40 km/hr respectively. The velocity of the car midway between P and Q is a) 33.3 km/hr b) 20√(2) km/hr c) 25√(2 )km/hr d) 35 km/h

    A car is moving along a straight road with a uniform acceleration. It passes through two points P and Q seperated by a dis†an ce with velocity 30 km/hr and 40 km/hr respectively. The velocity of the car midway between P and Q is a) 33.3 km/hr b) 20√(2) km/hr c) 25√(2 )km/hr d) 35 km/h

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    A car is moving along a straight road with a uniform acceleration. It passes through two points P and Q seperated by a dis†an ce with velocity 30 km/hr and 40 km/hr respectively. The velocity of the car midway between P and Q is a) 33.3 km/hr b) 20√(2) km/hr c) 25√(2 )km/hr d) 35 km/h

    Question

    A car is moving along a straight road with a uniform acceleration. It passes through two points P and Q seperated by a distance with velocity 30 km/hr and 40 km/hr respectively. The velocity of the car midway between P and Q is a) 33.3 km/hr b) 20

    √ 2 km/hr c) 25 √ 2 km/hr d) 35 km/hr. Open in App Solution

    Option (a) is correct.Step 1: Given

    Velocity at P=30 km/hr(u=initial velocity)

    Velocity at Q=40 km/hr(v=final velocity)

    Let the distance between P and Q is s.

    Assume acceleration of the car is a.

    Step 2: Formula used

    v²=u²+2*a*s (3rd equation of motion)

    Step 3: Finding velocity at midway between P and Q

    40²=30²+2*a*s 2as=1600-900 as= 700 2 as=350 Now,

    the distance of midway between P and Q is

    s 2 . so, distance= s 2 u=30km/hr

    v₁= velocity at midway between P and Q

    using, (v₁²=u²+2as) v₁²=30²+ 2 a s 2 v₁²=900+350 v₁²=1150 v₁=35.35 km/hr

    Hence, the velocity of the car midway between P and Q is 35.35 km/hr.

    Suggest Corrections 10

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    स्रोत : byjus.com

    A car is moving along a straight road with a uniform acceleration. It passes through two points P and Q separated by a distance with velocity 30 km/h and 40 km/h respectively. The velocity of the car midway between P and Q is?

    Click here👆to get an answer to your question ✍️ A car is moving along a straight road with a uniform acceleration. It passes through two points P and Q separated by a distance with velocity 30 km/h and 40 km/h respectively. The velocity of the car midway between P and Q is?

    Question

    A car is moving along a straight road with a uniform acceleration. It passes through two points P and Q separated by a distance with velocity 30 km/h and 40 km/h respectively. The velocity of the car midway between P and Q is?

    Medium Open in App

    Updated on : 2022-09-05

    Solution Verified by Toppr

    Assume acceleration of the car is a.

    PQ=s Using, v 2 =u 2 +2as. =>40 2 =30 2 +2as =>2as=700=>as=350

    Now, assume velocity of car at a midpoint of PQ is V.

    V 2 =vp 2 +2a( 2 s ​ ) =>V 2 =900+350=1250 =>V=35.35 s m ​

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    A car is moving along a straight road with a uniform acceleration. It passes through two points P and Q separated by a distance with velocity 30km//h and 40 km//h respectively. The velocity of the car midway between P and Q is

    A car is moving along a straight road with a uniform acceleration. It passes through two points P and Q separated by a distance with velocity 30km//h and 40 k

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    A car is moving along a straig...

    A car is moving along a straight road with a uniform acceleration. It passes through two points P and Q separated by a distance with velocity

    30km/h 30km/h and 40km/h 40km/h

    respectively. The velocity of the car midway between P and Q is

    Updated On: 27-06-2022

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    Text Solution Open Answer in App A 33.3km/h 33.3km/h B 20 2 – √ km/h 202km/h C 25 2 – √ km/h 252km/h D 0.35km/h 0.35km/h Answer

    The correct Answer is C

    Answer

    Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.

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