The top of the ramp is h1 = 1.17 m above the ground; the bottom of the ramp is h2 = 0.298 m above the ground. The block leaves the ramp moving horizontally, and lands a horizontal distance d away. Calculate the distance d.

Respuesta :

Answer:

d = 1.02 m

Explanation:

By energy conservation we can find the speed by which ball will leave the ramp

[tex]U_i + KE_i = U_f + KE_f[/tex]

here we know that

[tex]mgh_1 + 0 = mgh_2 + \frac{1}{2}mv^2[/tex]

here we have

[tex]h_1 = 1.17 m[/tex]

[tex]h_2 = 0.298 m[/tex]

so we have

[tex](9.8)(1.17) = (9.8)(0.298) + \frac{1}{2} v^2[/tex]

[tex]v = 4.13 m/s[/tex]

now the time taken by the block to reach the ground is given by

[tex]h_2 = \frac{1}{2}gt^2[/tex]

[tex]t = \sqrt{\frac{2h_2}{g}}[/tex]

[tex]t = \sqrt{\frac{2(0.298)}{9.8}}[/tex]

[tex]t = 0.25 s[/tex]

now the distance covered by it is given as

[tex]d = 0.25 \times 4.13[/tex]

[tex]d = 1.02 m[/tex]

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