A 'SawStop' table saw quickly stops the rotation of the saw blade when it comes in contact with a capacitive object (such as a finger), to prevent accidents. A carpenter pushes a piece of plywood through the table saw at a speed of 5 cm/s. The stopping mechanism is triggered (don't worry the carpenter is safe!). (A)The circular saw blade has a radius 12 cm and rotates at 4,000 rpm. If the rotation of the saw stops 2 ms (0.002 s) after contact with the blade, what is the angular acceleration as the blade slows down, assuming that the acceleration is constant (it will be very large and damage parts of the saw in the process).
(B) What angle will the saw blade rotate through as it comes to stop?
(C) If the blade stops rotating in 2.0 ms, the piece of wood would only travel 0.1 mm, about the thickness of a piece of paper, before the saw blade has stopped rotating (just a scratch)!

1134567 a jet with mass m = 1.1 ă— 105 kg jet accelerates down the runway for takeoff at 2 m/s2. 1) what is the net horizontal force on the airplane as it accelerates for takeoff? 2.2*10^5 n your submissions: 2.2*10^5 computed value: 220000submitted: saturday, january 26 at 2: 41 pm feedback: correct! 2) what is the net vertical force on the airplane as it accelerates for takeoff? 0 n your submissions: 0 computed value: 0submitted: saturday, january 26 at 2: 41 pm feedback: correct! 3) once off the ground, the plane climbs upward for 20 seconds. during this time, the vertical speed increases from zero to 21 m/s, while the horizontal speed increases from 80 m/s to 95 m/s. what is the net horizontal force on the airplane as it climbs upward? n 4) what is the net vertical force on the airplane as it climbs upward? n 5) after reaching cruising altitude, the plane levels off, keeping the horizontal speed constant, but smoothly reducing the vertical speed to zero, in 13 seconds. what is the net horizontal force on the airplane as it levels off? n 6) what is the net vertical force on the airplane as it levels off?

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.

Juliette sets the initial velocity to +10 m/s, the acceleration to zero, and clicks “start.” how can shakina describe the subsequent motion of the car juliette controls?