Answer:
J=0.211kg.m/s
Explanation:
The impulse-momentum theorem states:
The velocity before the impact is given by:
For the velocity after the impact:
so:
Answer:
The angular speed of the disc be at this time is 46.65 rad/s.
Explanation:
Given that,
Angular acceleration
Time t =15.0 s
We will calculate the angular speed of the disc
A disc initially at rest.
So,
Using rotational kinematics equation
Where, = initial angular speed
=final angular speed
= angular acceleration
Put the value in the equation
Hence, The angular speed of the disc be at this time is 46.65 rad/s.
Answer:
72J
Explanation:
distance moved is equal to 3m.then just substitute x with 3m.
Fx = (14(3) - 3.0(3)2)) N
Fx =(42-18)N
Fx =24N
W=Fx *S
W=24N*3m
W=72J
Operators can avoid damaging SAV's by only operating at high tides, and watch where they are going, because past scientific studies have shown that propellers from machines are known to damage existing SAV's<span />
It helps in some way might want to researh some stuff before youdo it :)