An object has a mass of 300 kg. The object slow down with an acceleration of -5 m/s2. What is the net force on the object?
A force of 60 N acts on an object and causes it to have an acceleration of 4 m/s2. What is the mass and weight of the object?
A jet with mass 4,500 kg can produce a thrust of 60,000 N. (a) What is the jet’s acceleration when it takes off? (b) What is the jet’s speed after it accelerates for 8 s? (c) How far does the jet travel during the 8 s?
A race car rounds a curve at 60 m/s. The radius of the curve is 400 m, and the car’s mass is 600 kg. (a) What is the centripetal acceleration of the car? (b) What is the
An object of 50 kg is being moved along a horizontal surface by two people. They are both pushing horizontally in the same direction with a force of 10 N each. The coefficient of kinetic friction between the object and the ground is 0.01.(a) What is the friction force acting on the object?(b) What is the net horizontal force on the object?(c) What is the horizontal acceleration of the object?(d) Starting from rest how far will they have pushed the object after one minute?
A 200 kg satellite is placed into orbit around the Earth with a radius of 4.23 x 107 m. The mass of the Earth is about 6 x 1024 kg. (a) Find the gravitational force on the satellite.(b) Use the equation of centripetal force to find the speed of the satellite.
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