# Question: A spring with a force constant of is to be

A spring with a force constant of is to be stretched from 0 to 20 cm.

(a) The work required to stretch the spring from 10 cm to 20 cm is (1) more than, (2) the same as, (3) less than that required to stretch it from 0 to 10 cm.

(b) Compare the two work values to prove your answer to part (a).

(a) The work required to stretch the spring from 10 cm to 20 cm is (1) more than, (2) the same as, (3) less than that required to stretch it from 0 to 10 cm.

(b) Compare the two work values to prove your answer to part (a).

## Answer to relevant Questions

In gravity-free interstellar space, a spaceship fires its rockets to speed up. The rockets are programmed to increase thrust from zero to 1.00 x 104 N with a linear increase over the course of 18.0 km. Then the thrust ...A 0.20-kg object with a horizontal speed of hits a wall and bounces directly back with only half the original speed. (a) What percentage of the object’s initial kinetic energy is lost: (1) 25%, (2) 50%, or (3) 75%? (b) ...If the work required to speed up a car from 10 km/h to 20 km/h is 5.0 x 103 J, what would be the work required to increase the car’s speed from 20 km/h to 30 km/h? A student has six textbooks, each with a thickness of 4.0 cm and a weight of 30 N. What is the minimum work the student would have to do to place all the books in a single vertical stack, starting with all the books on the ...A 0.20-kg rubber ball is dropped from a height of 1.0 m above the floor and it bounces back to a height of 0.70 m. (a) What is the ball’s speed just before hitting the floor? (b) What is the speed of the ball just as it ...Post your question