Two particles P and Q start from rest and move for equal time on a straight line. Particle P has an acceleration of X m/s2 for the first half of the total time and 2X m/s2 forthe second half. The particle Q has an acceleration of 2X m/s2 for the first half of the total time and Xm/s2 for the second half. Which particle has covered larger distance?
see full answer
High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET
🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.
An Intiative by Sri Chaitanya
a
both have covered the same distance
b
P has covered the larger distance
c
Q has covered the larger distance
d
none of these
answer is C.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
For P, in tsec. x1=12Xt2=Xt22⇒v1=Xtx2=(Xt)t+122Xt2⇒x2=2Xt2xp=x1+x2=52X+2 For Q, y1=12(2X)t2=Xt2⇒v2=2Xty2=(2Xt)t+12Xt2=52Xt2yQ=y1+y2=72Xt2⇒yQ>xP