A block of mass 493 g is pushed against the
spring (located on the left-hand side of the<...
![subject](/tpl/images/cats/fizika.png)
A block of mass 493 g is pushed against the
spring (located on the left-hand side of the
track) and compresses the spring a distance
4.9 cm from its equilibrium position (as shown
in the figure below). The block starts from
rest, is accelerated by the compressed spring,
and slides across a frictionless horizontal track
(as shown in the figure below). It leaves the
track horizontally, flies through the air, and
subsequently strikes the ground.
The acceleration of gravity is 9.81 m/s^2
a. what is the spring constant
b. what is the speed v of the block when it leaves the track?
c. what is the total speed of the block when it hits the ground?
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Answers: 2
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