A 5.6 g experimental dart is fired into a block of wood with a mass of 24.6 g. The wood block is initially at rest on a 2.8 m tall post. After the collision, the wood block and dart land 2.9 m from the base of the post. Find the initial speed of the dart. Answer in units of m/s.

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

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joke:

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490 n

f=125n a=2.5m/s2