If size of two balls are same and they are dropped from same height
Then the net force on two balls are given as
here we know that
= weight of the ball
= viscous or drag force of medium
now by Newton's II law we can find the acceleration of ball
now if we ignore the medium resistance as it is very small
so both the balls will have same acceleration
and also by kinematics we can say
so here we can see that since two balls are dropped from same height and the acceleration is also same for both so here it will take same time to reach the ground.
Answer:
OR
Explanation:
From the question we are told that
The constant speed of the balloon is
The height of the balloon is
The initial speed of the pellet is
Generally the height of the balloon at the point it is the same altitude with the pellet is mathematically represented as
Note: vt is the distance covered by the balloon before the pellet got to it
Generally the height of the pellet when it is the same height with the balloon is mathematically represented using kinematics equation
So
H = s
=>
=>
=>
using the quadratic formula to solve the above equation
From the quadratic formula calculation
OR
So the height of this two place above the ground is mathematically evaluated as
OR
The volume of a cube is given by:
where L is the measure of each side (which corresponds to its width, since all sides of a cube are equal).
Plugging the data of the problem, L=32.1 cm, inside the equation, we find the volume: