Answer:
78.4 kg
225.792 J
Explanation:
= Mass of person = 78.4 kg
= Mass of canister = 0.005 kg
= Initial Velocity of person = 0 m/s
= Initial Velocity of canister = 3.6 m/s
= Final Velocity of person = 2.4 m/s
= Final Velocity of canister = 1.2 m/s
In this system the linear momentum is conserved
The mass of the canister is 78.4 kg
Kinetic energy is given by
The energy lost in the collision is 225.792 J
Answer:
(a)
(b) 78 m
Explanation:
Physics' cinematics as rates of change.
Velocity is defined as the rate of change of the displacement. Acceleration is the rate of change of the velocity.
Knowing that
(a) To find the displacement we need to integrate the velocity
(b) The displacement can be found by evaluating the integral
Answer:
3.94784176044N/m
Explanation:
The period of a spring is found using the formula T=2π, where m is the mass and k is the spring constant.
The period can also be found using the formula T=, where f is the frequency.
T=T
∴2π=
2π=1/0.1
=10/2π
10/k=1.59154943092²
10/2.53302959106=k
k=3.94784176044N/m
.
Explanation:
T=1/f
So if frequency increases the period will decrease
I would say the decision not to have children or to have only one child is becoming more common.