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natta225 [31]
3 years ago
10

A mass 25kg is attached to a spring which is held stretched a distance 120 cm by a force F=300N (Fig. 7-28), and then released.

The spring compresses, pulling the mass. Assuming there is no friction, determine the speed of the mass m when the spring returns: (a) to its normal length (x = 0). (b)find the spring constant k?

Physics
1 answer:
azamat3 years ago
4 0

Explanation:

Spring is stretched by force f to distance

"X"

now here by force balance we can say

f = kx

k = !

now here we will we say that energy stored in the spring will convert into kinetic energy

kx² = mv²

(x² = mv²

now solving above equation we will have

PART 2)

now for half of the extension again we can use energy conservation

ka²-k(x/2)² = 1 {mv²

¾fx=mv²

now the speed is given as

3 fr 4m V=

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What is an asteroid that is pulled off course by a planet’s gravity and orbits around that planet called?
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Let's examine the different answers

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True. A body captured by a planet is generally called the Moon.

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<h3>emf induced in the loop</h3>

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