When the force that causes the deformation disappears, the spring comes back to its initial shape, provided the elastic limit was not exceeded. Hooke's law states that for an elastic spring, the force and displacement are proportional to each other. It means that as the spring force increases, the displacement increases, too.
9. An object undergoes SHM and position as a function of time is presented by the following formula: x= (0.5 m) Cos (πt). What is the amplitude of oscillations? A) 2 m B) 1 m C) 0.5 m D) 0.1 m 10. The position as a function of time of a mass-spring oscillating system is presented by the graph.
B) The frictional force and force exerted by the spring scale on the block, because they are a Newton’s third-law pair. C) The normal force and the frictional force exerted on the block, because objects always exert forces of equal magnitude on each other.
50. A 250g block is dropped onto a relaxed vertical spring that has a spring constant of k=2.5N/cm. The block becomes attached to the spring and compresses the spring 12 cm before momentarily stopping. While the spring is being compressed, what work is done on the block by (a) the gravitational force on it and (b) the spring force?
A particle of mass m is moving with a constant speed v in a circular path in a smooth horizontal plane (plane of paper) by a spring force as shown in Fig. If the natural length of the spring is l 0 and stiffness of the spring is k, find the elongation of the spring.
(e) none of the above Multiple Choice Question 2 Two 1.0 Kg point masses a distance D apart each exert a gravitational force of magnitude F on the other one. If 1.0 Kg is now added to each mass, the gravitational attraction exerted by each would be (a) F (b) 2F (c) 3F (d) 4F Multiple Choice Question 3 An object weighs 200 N on the earth’s ...
block is a spring in its equilibrium position with spring constant k=2 N/m. The spring has a massless platform that is attached to its top (the top of the spring with platform is even with the ground level). The block lands on and compresses the spring by a distance x. This is not a homework problem - feel free to round your answers as you go.
14 A 5-newton force causes a spring to stretch 0.2 meter. What is the potential energy stored in the stretched spring? (1) 1 J (3) 0.2 J (2) 0.5 J (4) 0.1 J 15 A 40.-kilogram student runs up a staircase to a floor that is 5.0 meters higher than her starting point in 7.0 seconds. The student’s power output is (1) 29 W (3) 1.4 × 103 W
The edge of the table is a height h above the top of the box The spring has a spring constant k . By what distance x should the child compress the spring so that the marble lands in the center of the box? The sacrum axis of the. vertebral column. Assume that mass of the head and arms is m2 =.