Q.1
A stone falls under gravity. It covers distances h1, h2, h3 in the first 5 seconds, next 5 seconds and the next 5 seconds respectively. The relation between h1, h2 ,h3 is.. [NEET 2013]
  • a) h1 =2h2 =3h3
  • b) h1 = h2/3 = h3/5
  • c) h2 =3h1 and h3 = 3h2
  • d) h1 =h2 =h3
Q.2
A particle of unit mass undergoes one-dimensional motion such that its velocity varies according to v(x) = βx-2n, where β and n are constants and x is the position of the particle. The acceleration of the particle as a function of x, is given by : … [ AIPMT 2015]
  • a) -2nβ2 x-4n+1
  • b) -2nβ2 x-2n-1
  • c) -2nβ2 x-4n-1
  • d) -2β2 x-2n+1
Q.3
Two cars P and Q start from a point at the same time in a straight line and their positions are represented by xp(t) = at + bt2 and xQ (t) = ft – tAt what time do the cars have the same velocity ? [ NEET II – 2016]
  • a)
    ch-2_qn-243choice_img_no1.png
  • b)
    ch-2_qn-243choice_img_no2.png
  • c)
    ch-2_qn-243choice_img_no3.png
  • d)
    ch-2_qn-243choice_img_no4.png
0 h : 0 m : 1 s