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valentina_108 [34]
3 years ago
5

a cart is initially moving at 0.5 m/s along a track. The cart comes to rest after traveling I m. The experiment is repeated on t

he same track, but now the cart is initially moving at I m/s. How far does the cart travel before coming to rest?

Physics
2 answers:
blondinia [14]3 years ago
8 0

Answer:

4m

Explanation:

Using the kinematic equation;

For the first stage when the car is initially moving at 0.5m/s

definitely u = 0.5 m/s and v = 0

The cart comes to rest after traveling I m, ∴ (s) = 1m

the acceleration of the car can be expressed by applying the kinematic equation:

v^2-u^2=2as

making "a" the subject of the formula; we have:

a = \frac{v^2-u^2}{2s}

a= \frac{0-(0.5 m/s)^2}{2(1m)}

a = 0.125 m/s²

The experiment is repeated on the same track, but now the cart is initially moving at I m/s

i.e v = 1 m/s  and u=0

S=\frac{v^2-u^2}{2a}

S= \frac{(1m/s)^2-0}{2(0.125m/s^2)}

S = 4 m

∴ the cart traveled 4m  before coming to rest.

Burka [1]3 years ago
8 0

Explanation:

Below is an attachment containing the solution.

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