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Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

Used and loved by over 6 million people

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.

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Calculus

Implicit Differentiation

Concept Quizzes

Polynomials
Rational Functions
Radical Functions
Exponential/Logarithmic Functions
Trigonometric Functions
Inverse Trigonometric Functions
Problem Solving - Basic
Related Rates

Challenge Quizzes

Level 2
Level 3

Implicit Differentiation - Related Rates

In a fairy tale, a wizard rides a cloud which is moving to the right at a speed of \(15\text{ m/s.}\) The wizard throws a ball vertically upward with a speed of \(3\text{ m/s}\) relative to the cloud. When the cloud has moved to the right \(30 \text{ m}\) following the throw, what is the velocity of the ball as seen by people on the ground?

Assume that air resistance is negligible and ignore the effect of gravity.

\[\displaystyle{\frac{\sqrt{936}}{2}}\] m/s \[3\] m/s \[9\] m/s \[\displaystyle{\frac{\sqrt{936}}{4}}\] m/s

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by Brilliant Staff

As shown in the above diagram, a plane taxis off a runway at a speed of \(a \text{ m/s} = 42 \text{ m/s}\) in order to take off. After taking off, the plane continues flying at \(42 \text{ m/s}\), with vertical speed \(b \text{ m/s} = 24 \text{ m/s}.\) What is the horizontal speed of the plane \(5\) seconds after take-off?

\[\displaystyle{\frac{\sqrt{32580}}{5}}\] m/s \[\displaystyle{\frac{\sqrt{32580}}{7}}\] m/s \[\displaystyle{\frac{\sqrt{29700}}{5}}\] m/s \[\displaystyle{\frac{\sqrt{29700}}{7}}\] m/s

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by Brilliant Staff

Two people \(A\) and \(B\) start off at the point \((0,0)\) at the same time and walk east and north at \(10\text{ m/min}\) and \(6\text{ m/min},\) respectively. What is the rate at which their distance increases after \(3\text{ min}?\)

\[\frac{408}{\sqrt{1229}}\] m/min \[\frac{408}{\sqrt{1234}}\] m/min \[\frac{408}{\sqrt{1224}}\] m/min \[\frac{408}{\sqrt{1214}}\] m/min

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by Brilliant Staff

As shown in the above digram, a thick layer of snow accumulates on a vertically symmetrical peaked roof, which causes the roof to slowly collapse downward under the weight of the snow. The length of the peaked roof is \(x=28 \text{ m}\) on each side and the length of the base of the roof is \(2a.\) If the collapse of the roof is such that \(a\) increases at a rate of \(5\) meters per hour, how fast is the height \(b\) of the roof collapsing when \(a=18?\)

Note: The above diagram is not drawn to scale.

\[\displaystyle{-\frac{90}{\sqrt{460}}}\] m/hour \[\displaystyle{-\frac{95}{\sqrt{470}}}\] m/hour \[\displaystyle{-\frac{95}{\sqrt{460}}}\] m/hour \[\displaystyle{-\frac{90}{\sqrt{470}}}\] m/hour

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by Brilliant Staff

An aircraft is flying 8000 feet above the ground. It is moving due east at a velocity of 900 feet per second and is located due east of an observation tower. At a certain moment, the angle of elevation is \( \frac{ \pi}{4} \). At that time, what is the rate of increase of the angle of elevation (in radians per second)?

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by Brilliant Staff

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

Used and loved by over 6 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

Used and loved by over 6 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.

Implicit Differentiation

Concept Quizzes

Challenge Quizzes

Implicit Differentiation - Related Rates

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.