1) The vertical height and horizontal range of projectile will be equal if angle of projection is
a) 76
b) 45
c) 90
d) 60
2) The ratio of distance to displacement along semi circle of radiusr is
a)2pie
b)pie/2
c)pie
d)none
3) K.E of projectile at hihest point is half of its initial k.e. the angle of projection is
a) 30
b) 45
c) 60
d) none
a) 76
b) 45
c) 90
d) 60
2) The ratio of distance to displacement along semi circle of radiusr is
a)2pie
b)pie/2
c)pie
d)none
3) K.E of projectile at hihest point is half of its initial k.e. the angle of projection is
a) 30
b) 45
c) 60
d) none