Question

Two rocks are thrown from the top of a cliff (700.0 m). Rock A is thrown straight upward with an initial velocity of 84.2 m/s. Rock B is thrown horizontally after Rock A with an initial velocity of 150.0 m/s. Both rocks land at the bottom of the cliff at the same time. Ignore air resistance How long does Rock A spend in the air before hitting the ground? Clearly show all work. How long must you have waited after throwing Rock A before throwing Rock B (so that both rocks land at the same time)? Clearly show all work. How far from the base of the cliff does Rock B land? Clearly show all work.

          Two rocks are thrown from the top of a cliff (700.0 m). Rock A
is thrown straight upward with an initial velocity of 84.2 m/s.
Rock B is thrown horizontally after Rock A with an initial velocity
of 150.0 m/s. Both rocks land at the bottom of the cliff at the
same time. Ignore air resistance
 How long does Rock A spend in the air before hitting the
ground? Clearly show all work.
 How long must you have waited after throwing Rock A
before throwing Rock B (so that both rocks land at the same time)?
Clearly show all work.
 How far from the base of the cliff does Rock B land?
Clearly show all work.

Show more…

Added by Jose Francisco C.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Suman K

06/16/2022

Step 1

Given: Initial velocity of Rock A, \(u = 84.2 \, \text{m/s}\) Acceleration due to gravity, \(g = 9.8 \, \text{m/s}^2\) Height, \(h = 700 \, \text{m}\) Using the equation of motion: \(s = ut + \frac{1}{2}at^2\) Substitute the values: \(-700 = 84.2t - \frac{1}{2} Show more…

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Two rocks are thrown from the top of a cliff (700.0 m). Rock A is thrown straight upward with an initial velocity of 84.2 m/s. Rock B is thrown horizontally after Rock A with an initial velocity of 150.0 m/s. Both rocks land at the bottom of the cliff at the same time. Ignore air resistance How long does Rock A spend in the air before hitting the ground? Clearly show all work. How long must you have waited after throwing Rock A before throwing Rock B (so that both rocks land at the same time)? Clearly show all work. How far from the base of the cliff does Rock B land? Clearly show all work.

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