Question

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} )

# 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

Solution