Fig. 1 A ball is thrown with speed vo at an angle 0 above the horizontal from the top of the cliff of height 3R. It lands at a distance R/2 from the base. Show that: 4 cos 0(6+tan) R

i wanna say it’s between b and d, leaning more towards b.

momentum of soft ball three times less than baskey ball

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards