Ans both questions (3)
(4)
3/2
39. 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) = gt + bt
and XQ(t) = —t 2. At what tilbe do the cars
have the same velocity?
(1)
2(b-1)
f¯a
(3
2(1+b)
(2)
2(1+b)
(4)
1+1)
In the given figure, a = 15 m/s represents
the total acceleration of a particle moving in
the clockwise direction in a circle of radius
R = m at a given instant of time. The
spü¯rthe particle is
a
o
07
(1) m/s
62 m/s
(4) 4-5 m/ s
. A rigid ball of mass m strikes a rigid wall a
600 and gets reflected without loss of spee
as shown in the figure below. The value o
impulse imparted by the wall on the bal
will be
m
Kno
