the total force opposing motion of the box and the parachute at particular time during its fall is 30N.the combined mass of the box and parachute is 5kg
1. Caculate the resultant downward force and box and the parachute (g=10N)
mg downward
30 N upward
net downward = m g - 30
g is not in Newtons but in m/s^2.
It is more like 9.81 m/s^2 on earth but ok, use 10 m/s^2
net downward = 5 kg ( 10 m/s^2) - 30
= 50 - 30
= 20 Newtons
To calculate the resultant downward force on the box and the parachute, we can use Newton's second law, which states that the force is equal to the mass multiplied by the acceleration.
Given:
Total force opposing motion = 30 N
Combined mass of the box and parachute = 5 kg
Acceleration due to gravity (g) = 10 N
Since the force opposing motion is in the upward direction against gravity, the resultant downward force can be calculated by subtracting the force opposing motion from the force due to gravity.
Force due to gravity = mass * acceleration due to gravity
Force due to gravity = 5 kg * 10 N = 50 N
Resultant downward force = Force due to gravity - Total force opposing motion
Resultant downward force = 50 N - 30 N = 20 N
Therefore, the resultant downward force on the box and the parachute is 20 N.
To calculate the resultant downward force on the box and parachute, we need to sum up all the forces acting on it. In this case, there are two forces: the gravitational force and the force opposing motion.
Let's assume the gravitational force acting on the box and parachute is Fg, and the force opposing motion is Fopp.
Now, according to the problem statement, we know that the Fopp is 30N, and the mass of the box and parachute combined is 5kg.
First, let's calculate the gravitational force (Fg) using the formula:
Fg = m * g
where m is the mass and g is the acceleration due to gravity. Given that g is 10N, we have:
Fg = 5kg * 10N/kg = 50N
Now, since we have the force opposing motion (Fopp) as 30N, we can calculate the resultant downward force (Fr) by subtracting Fopp from Fg:
Fr = Fg - Fopp
= 50N - 30N
= 20N
So, the resultant downward force on the box and parachute is 20N.