
A constant force equal to F=3i+2j N is applied to a block which weighs 3.0 kg. The block is moved from a point <1.2,1.4,0> and eventually arrives at a position <1.9,1.1,0>. a) How much work is done by the force F given above? b) What is the change in kinetic energy of the block? c) If the block starts from 3.0 m/s what is the magnitude of its final velocity?
A force F = (81-2j)N acts on a particle that undergoes a displacement Ar = (4i +2j)m. Find the following: (a) The work done by the force on the particle
A constant force of 25 N is applied as shown to a block which undergoes a displacement of 7.5 m to the right along a frictionless surface while the force acts. What iswork done by the force?W=Fcos(30)sW=25cos(30)7.5=160JWhat else do I need to do?????
A constant force is applied to a 10 kg box, giving it an acceleration of 25 m/s2. What is the magnitude of the applied force? How much work has been done when the box moves 100 m?
A 730 N force is applied to the 110 kg box. Determine
the magnitude of the friction force F exerted by the horizontal
sirface on the block.
A 730 N force is applied to the 110 kg box. Determine the magnitude of the friction force F exerted by the horizontal surface on the block. 730 N 3 2 Mass = 110 kg Us = 0.65 MK =0.54
An object of 1.0 kg mass is pulled up an inclined plane by a constant force of 10 N that causes a displacement of 0.50 m. The angle of inclination with the horizontal is 30degree. Neglect friction and use g = 10 m/s^2. What is the work done by the net force on the object along the inclined plane? 4.3 J 4.3 kg m/s^2 0 J 2.5 J 3.5 J
(10 pts) A constant force is applied to a 10 kg box, giving it an acceleration of 25 m/s a. What is the magnitude of the applied force? 10. b. How much work has been done when the box moves 100 m?
12. (10 pts) A constant force is applied to a 10 kg box, giving it an acceleration of 25 m/s. a. What is the magnitude of the applied force? b. How much work has been done when the box moves 100 m?
A pushing force is applied to a 3.5-kg box. It starts from 2m/s and accelerates to 5.2 m/s covering the distance of 6 m. (a) Find the work done by the pushing force. (b) If friction is negligible, find the average force exerted on the box. Find (c) an impulse of the force, (d) the change in the momentum, (e) the final kinetic energy.
10. (10 pts) A constant force is applied to a 10 kg box, giving it an acceleration of 25 m/s 2. What is the magnitude of the applied force? b. How much work has been done when the box moves 100 m²