The air exerts a forward force of 9 N on the propeller of a 0.20
kg model airplane. If the plane accelerates forward at 5.0
m/s2, what is the magnitude of the resistive force
exerted by the air on the airplane?
N
mention in comment if you have
any doubt and please rate the answer if you like it
The air exerts a forward force of 9 N on the propeller of a 0.20 kg...
A 630 kg car pulling a 500 kg trailer accelerates forward at a rate of 2.17 m/s2. Assume frictional forces on the trailer are negligible. Ignore air drag. (a) Calculate the net force (in N) on the car. magnitude N direction ---Select--- forward backward (b) Calculate the net force (in N) on the trailer. magnitude N direction ---Select--- forward backward (c) What is the force (in N) exerted by the trailer on the car? magnitude N direction ---Select--- forward backward...
A jet aircraft with a mass of 4,675 kg has an engine that exerts a force (thrust) equal to 59,500 N. (a) What is the jet's acceleration when it takes off? (Give the magnitude.) m/s2 (b)What is the jet's speed after it accelerates for 9 s? (Assume it starts from rest.) m/s (c) How far does the jet travel during the 9 s? m
3. An engine exerts a force of 10000 N on a 1000 kg car travelling over a flat road. The force (overcoming friction) accelerates the car from rest such that it travels a distance of 50 m in 5 s Find e. the net acceleration of the car, f. normal force exerted by the road on the car, and g. the coefficient of kinetic friction between the car and the road? 4. A 10 kg block is initially at rest...
QUESTION 5 A centripetal force of 150 N acts on an 800 kg satellite moving with a speed of 4,500 m/s in a circular orbit around a planet. What is the acceleration of the satellite in m/s2? 0.19 m/s2 0.24 m/s2 0.30 m/s2 0.21 m/s2 QUESTION 6 An airplane has a mass of 4,800 pounds. If a force of 130,000 N is applied, what is the acceleration is g's? 5.8 g 5.0 g 4.5 g 6.1 g QUESTION 7 Static...
A horizontal force of 89.7 N is applied to a 22.5 kg crate on a rough, level surface. If the crate accelerates at 1.18 m/s2, what is the magnitude of the force of kinetic friction (in N) acting on the crate?
Please show work and explain A jet with mass m = 6 × 104 kg jet accelerates down the runway for takeoff at 2.1 m/s2. 1) What is the net horizontal force on the airplane as it accelerates for takeoff? N 2) What is the net vertical force on the airplane as it accelerates for takeoff? N 3) Once off the ground, the plane climbs upward for 20 seconds. During this time, the vertical speed increases from zero to 23...
When you drop a 0.35 kg apple, Earth exerts a force on it that accelerates it at 9.8 m/s^2 toward the earths surface. According to Newton’s third law, the apple must exert an equal but opposite force on Earth. If the mass of the earth is 5.98x10^24 kg, what is the magnitude of the earth’s acceleration toward the apple? Answer in units of m/s^2.
Suppose you exert a force of 192 N tangential to a 0.295 m radius 75.0 kg grindstone (a solid disk). (Give your answers to at least 2 decimal places.) (a)What torque (in N · m) is exerted? (Enter the magnitude.) N · m (b)What is the angular acceleration (in rad/s2) assuming negligible opposing friction? (Enter the magnitude.) rad/s2 (c)What is the angular acceleration (in rad/s2) if there is an opposing frictional force of 19.6 N exerted 2.75 cm from the...
Show Intro/Instruct m -5-in a medium that exerts a resistive force with magnitude proportional to the square of An object with mass 128 kg is given an initial downward velocity m m 10 the speed. The resistance is 320 N when the velocity is -4 Use g Write out a differential equation in terms of the velocity v, and acceleration a a-10-(5/32)v 2 Preview Show Intro/Instruct m -5-in a medium that exerts a resistive force with magnitude proportional to the...
A person exerts a horizontal force of 30 N on the end of a door 92 cm wide. a) What is the magnitude of the torque if the force is exerted perpendicular to the door? b) What is the magnitude of the torque if the force is exerted at a 70.0 ∘ angle to the face of the door?