A red water balloon is thrown horizontally from the top of a bridge. At the same instant, a yellow water balloon is dropped off the bridge from the same height. Compare the time of fall for the two balloons. Assume air resistance is negligible.

A)The red water balloon hits the ground first.

B) The two balloons hit the ground at the same time.

C) The yellow balloon hits the ground first.

D) The time of fall depends on the amount of water placed in each of the balloons.

B) The two balloons hit the ground at the same time.

Explanation:

If air resistant is ignored, and both have the same distance to the ground, then gravitational acceleration g is the only thing that affect vertical motion of both balloons, no matter what their horizontal motion is. Since both balloons are starting from rest, vertically speaking their speeds are 0 initially, they are both subjected to the same acceleration g, then they travel at the same rate and would reach the ground at the same time.

think its the third option

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