A horizontal force of 40 N pushes an object of mass 5.0 kg up an inclined plane through a distance of 1.6 m measured along the plane. The plane is inclined at an angle of 30° to the horizontal. Neglect friction and use g = 10 m/s2
(a) What is the work done by the horizontal force on the object? (b) What is the work done by the net force on the object? (c) What is the work done by the normal force on the object?
(a) 55 J
(b) 15 J
(c) 0 J
You might also like to view...
A 3.00-kg stone is dropped from a 39.2 m high building. When the stone has fallen 19.6 m, the magnitude of the impulse it has received from the gravitational force is
A.
B.
C.
D.
E.
A mass of 375 g hangs from a string that is wrapped around the circumference of a pulley with a moment of inertia of 0.0125 kg?m2 and a radius of 26.0 cm
When the mass is released, the mass accelerates downward and the pulley rotates about its axis as the string unwinds. What is the acceleration of the mass? A) 19.9 m/s2 B) 15.8 m/s2 C) 13.1 m/s2 D) 6.57 m/s2 E) 3.28 m/s2
Nearly all meteors are material from _______________
Fill in the blank(s) with correct word
A ________ lens is used to compensate for hyperopia
Fill in the blank(s) with correct word