A 90kg cannon fires 100kg shell with muzzle velocity of 75m/s. Calculate the recoil velocity of the cannon relative to the groun
1 answer:
You might be interested in
Answer:
a. F = 2.32*10^-18 N
b. The force F is 2.59*10^11 times the weight of the electron
Explanation:
a. In order to calculate the magnitude of the force exerted on the electron you first calculate the acceleration of the electron, by using the following formula:
(1)
v: final speed of the electron = 6.60*10^5 m/s
vo: initial speed of the electron = 4.00*10^5 m/s
a: acceleration of the electron = ?
x: distance traveled by the electron = 5.40cm = 0.054m
you solve the equation (2) for a and replace the values of the parameters:
Next, you use the second Newton law to calculate the force:
m: mass of the electron = 9.11*10^-31kg
The magnitude of the force exerted on the electron is 2.32*10^-18 N
b. The weight of the electron is given by:
The quotient between the weight of the electron and the force F is:
The force F is 2.59*10^11 times the weight of the electron
Explanation:
It is given that
The kinetic energy of Mr. Thomson’s prius, K = 641300 J
He is moving with a velocity, v = 22 m/s
It is required to find the mass of Mr. Thomson’s prius.
Due to his motion, a kinetic energy will possess by him. The mathematical form of kinetic energy is given by :
Solving for m
Plugging all the values, we get :
So, the mass of Mr. Thomson’s prius is 2650 kg.
Answer: 4550 Joules
The formula for potential energy in gravitational field is as follows: