Q.1
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
Q.2
A car moving with a speed 40 km/h can be stopped by applying brakes after 2m. If the same car is moving with speed of 80 km/h, what is the minimum stopping distance
  • a) 8 m
  • b) 2m
  • c)4m
  • d)6 m
Q.3
A man throws balls with the same speed vertically upward one after the other at an interval of 2 seconds. what should be the speed of the throw so that more than two balls are in the sky at any time? g=m/s2
  • a) only with speed 1.6 m/s
  • b) more than 19.6 m/s
  • c)At least 9.8 m/s
  • d)Any speed less than 19.6 m/s
0 h : 0 m : 1 s