5.the motion of the piston of an automobile engine is approximately shm. a) if the stroke of an engine (twice the amplitude) is 0.100m and the engine runs at 3500rev/min., compute the acceleration of the piston at the endpoints of its stroke. b) if the piston has a mass of 0.450kg, what net force must be exerted on it at this point? c) what are the speed and kinetic energy of the piston at the midpoint of its stroke? d) what average power is required to accelerate the piston from rest to the speed found in c)?

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?

One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?