Please Solve Q.19..Thanks.. Jle
QI
If
Q.18
020
F-o & F-1/ UT -3/ 180707 [5]
A shell fired from the base ofa mountain just clears it. If is the angle of projection, then
the angular elevation of the summit is
2
tan u
(C) tan-
2
(B) tan-
2
(D) tan-I (2 tan (E)
Two bodies move along a straight line towards each other at initial velocities v, and v 2 and with constant
accelerations a, and a, directed against the corresponding velocities at the initial instant. The maximum initial
between the bodies for which they will meet during the mticn is,
separation Im
2(av— a z)
anaz
In the given figure, the angle of inclination of the inclined plane is 300 Find the horizontal
velocity vc so that the particle hits the inclined plane perpendicularly
12gH
i2gH
If a particle takes t seconds less and acquires a velocity of v m/s more in falling through same distance (starting
on two olanets where accelerations due to gravity are 2 g and 8 g respectively then
Dear student