та luj Va A car is moving along a s...
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та luj Va A car is moving along a straight road with a unir acceleration. It passes through two points Par separated by a distance with velocities 30 km/hand 40 km/h respectively. What is the velocity of the car midway between P and Q? (a) 33.3 km/h (b) 0.35 km/h (c) 252 km/h (d) 20/2 km/h If a car at rest accelerates uniformly to a enne 11

NEET/Medical Exams
Physics
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Let acc. be a ( & ) dis b/w P8 9 be d If we take initial velocity (4) at ( P ) ( & ) tinal velocity ( (v) ) at 9 ( Rightarrow B v^{2}-u^{2}=2 a s ) ( Rightarrow 40^{2}-30^{2}=2 a x d ) ( Rightarrow a d=frac{700}{2}=350 ) ( Rightarrow v^{2}-30^{2}=2 a times frac{d}{2} ) ( Rightarrow v^{2}=a d+30^{2} Rightarrow v^{2}=1250 ) ( v=sqrt{1250}=sqrt{625 times 2}=25 sqrt{2} )
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