given p=20-2t kgm/s for a 4kg object, find the net force and acceleration?
A force is applied to a 4kg object so the it produces an acceleration of 1.1m/s^2. However, there is friction on the surface it slides on; the coefficient of kinetic friction on the surface is .4, what is the magnitude of the force applied? A. 30.08N B. 5.08N C. 10.08N D. 20.08N E. None of the above
An object has an initial momentum of 57.4 kgm/s to the right. A force is then exerted on the object in the opposite direction over a period of time which, resulting in its final momentum of 22.5 kgm/s to the left. What is the impulse acting on this object? Enter the units as N*s and assume right to be the positive direction.
An object has an acceleration of 4.0 m/s/s. If the net force experienced by the object is increased by a factor of 2.5 and if the mass of the object is increased by a factor of 3.3, then the new acceleration wuld be m/s/s. Enter a numerical answer. Che Prog ##.##! View Objectives Quit Assignment
Find the acceleration from given frictionless system. ()
4kg 5kg
NLT Newton's Second Law An object has an acceleration of 3.1 m/s/s. If the net force experienced by the object is increased by a factor of 2.9, then the new acceleration would be m /s/s. Enter a numerical answer. pp
An object experiences a net force of 20 N and has an acceleration of 4 m/s2. The object’s mass must be 20 kg 5 kg 80 kg 2 kg
17. A net force of 24 N is acting on a 4.0-kg object. Find the acceleration in m/s2
m=7 kg Finding Net Force (20 pts) What is the acceleration for the object on an incline shown @ right? (20 pts) To maintain a constant 0=35° velocity, a locomotive's steam engine delivers an average of 140,000N where the wheel meets the rail. The coefficient of static friction (u) is 0.71. What is the mass, in kg, of the locomotive? (10 pts) Rank the free body diagrams from greatest net force to least net force. TB I CID
A singe force of F(x) = 15 -3x^2 acts on an 4kg object as it moves from x =1m to x=4m. If the object has a speed of 5m/s at 1m, then what is its speed at 4m?
Calculate the net acceleration of an object moving in a circle of radius 20 m if the object is moving at a constant speed of 15 m/s. Also calculate the net acceleration of the object when it speeds up from 15 m/s to 60 m/s in 5 seconds at the instant when its moving at 15 m/s and when it is moving at 60 m/s.