Physics, 04.08.2019 10:00 parkerwallace04

If you have a 60 g egg dropped from a height of 10 m with cushioning material that delays the impact by 2 seconds what was the force exerted on the egg by the floor?

Answers: 1

Show answers

Answers

The potential energy of the egg when it begins to fall is equal to the kinetic energy of the egg just before touching the ground:
m * g * h = (1/2) * m * v ^ 2
Clearing the speed:
v = root (2 * h * g)
Substituting the values
v = root (2 * (10) * (9.8)) = 14
Then, by definition, we have
F * deltat = m * deltav
Clearing F
F = (m * deltav) / (deltat)
Substituting the values
F = ((0.060) * (14)) / (2) = 0.42
answer
the force exerted on the egg by the floor was 0.42N

Answer from: Quest

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

$f\alpha \frac{dp}{dt}$

⇒ $f= k \frac{dp}{dt}$

here k is the proportionality constant whose value is 1.

$f=\frac{dp}{dt}$

$f= \frac{d[mv]}{dt}$

$f= m\frac{dv}{dt} +v\frac{dm}{dt}$

$f=ma+v\frac{dm}{dt}$ [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

Answer from: Quest

part 1: which substance has a higher solubility?

smallest amount left undissolved atall temps in table shown most has dissolved high sol'by

Other questions on the subject: Physics

Physics, 22.06.2019 02:50, briee998

What is required for an electric charge to flow through a wire? zero resistance in the wire a balance of electric potential high resistance in the wire a difference in electric potential

Answers: 1

continue

Physics, 22.06.2019 17:00, tajanae11

If you put a helium-filled balloon in the refrigerator, what will happen?

Answers: 1

continue

Physics, 22.06.2019 22:00, janyha212

On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2.

Answers: 2

continue

Physics, 22.06.2019 22:00, savannahworkman11

Acar is traveling 35 mph on a smooth surface . if a balanced force is applied to the car what happens?

Answers: 3

continue

You know the right answer?

If you have a 60 g egg dropped from a height of 10 m with cushioning material that delays the impact...