Answer:
0.14 kg
Explanation:
a= (Vf²- Vi²)/2.d
the final velocity is 0 (rest), and the initial velocity is 92 mi/h, that is equal to 41 m/s and the distance is 0.15 meters.
a= -5603 m/s² the minos means that the object is decelerating.
then we can use the second Newton law
F= m.a
m= F/a -----> m= 803N / 5603 m/s²
m= 0.14 kg
Using , F= ma .
where F is netforce , m is mass and a is acceleration produced .
=> m=F/a.
m= 8/1.1 = 7.27 Kg.
Answer:
Answer:B
Explanation:
Because it all stayed consistant
Answer:
Angular acceleration of the disk ∝ = K
Explanation:
Given that;
Angular velocity function given by ω = Kt + L
Angular acceleration of the disk at t=T is = ?
Now,
Angular velocity;
ω = Kt + L
Angular acceleration is;
∝ = dω / dt
= ( Kt + L )
At t = T
∝ = K
Because ∝ is not dependent on t
Therefore
Angular acceleration of the disk ∝ = K