Recent questions tagged rate of change of bodies

+3 votes

1 answer

The radius r of the base of a right circular cone is decreasing at the rate of 2 cm/min. and height h is increasing at the rate of 3 cm/min.

asked Apr 1, 2019 in Class 12 by kratos

+2 votes

1 answer

The total cost associated with provision of free mid-day meals to x students of a school in primary classes is given

asked Mar 28, 2019 in Class 12 by kratos

+3 votes

1 answer

Using derivative, find the approximate percentage increase in the area of a circle if its radius is increased by 2%.

asked Mar 24, 2019 in Class 12 by kratos

+3 votes

1 answer

A balloon, which always ******* spherical, has a variable diameter 3(2x+1)/2 . Find the rate of change of its volume with respect to x.

asked Mar 21, 2019 in Class 12 by kratos

+3 votes

0 answers

The side of an equilateral triangle is increasing at the rate √3 cm./sec.

asked Mar 12, 2019 in Class 12 by kratos

+1 vote

1 answer

If the volume of a spherical ball is increasing at the rate of 4πcc/sec,

asked Feb 28, 2019 in Class 12 by kratos

+1 vote

1 answer

The length x, of a rectangle is decreasing at the rate of 5 cm/minute and the width y, is increasing at the rate of 4 cm/minute.

asked Feb 28, 2019 in Class 12 by kratos

+1 vote

1 answer

A particle moves along the curve 6y = x^3 + 2. Find the points on the curve at which the y - coordinate is changing 8 time

asked Feb 20, 2019 in Class 12 by kratos

+1 vote

1 answer

If the rate of change of c(t) with respect to t, when t = k, is l, then

asked Feb 12, 2019 in JEE by kratos

+1 vote

1 answer

A balloon, which always ******* spherical has a variable radius. Find the rate at which its volume is

asked Feb 6, 2019 in Class 12 by kratos

+1 vote

1 answer

What makes our life happy: money or contentment or both? Discuss.

asked Feb 5, 2019 in Class 12 by kratos

+1 vote

1 answer

Dining places provided meals every day at a fixed place. These were started

asked Feb 4, 2019 in Class 12 by kratos

+3 votes

1 answer

A right circular cone with radius R and height H contains a liquid which evaporates at a rate proportional to its surface area

asked Feb 3, 2019 in JEE by kratos

+2 votes

1 answer

The volume of a cube is increasing at the rate of 8 cm^3/*. How fast is the surface area increasing when the length of an edge is 12 cm?

asked Jan 29, 2019 in Class 12 by kratos

+2 votes

1 answer

The length x of a rectangle is decreasing at the rate of 5 cm/minute and the width y is increasing at the rate of 4 cm/minute.

asked Jan 26, 2019 in Class 12 by kratos

+3 votes

1 answer

The volume of a cube is increasing at the rate of 8 cm^3 / sec. How fast is the surface area increasing when

asked Jan 25, 2019 in Class 12 by kratos

+3 votes

1 answer

A ladder 5 m long is leaning against a wall. The bottom of the ladder is pulled along the ground,

asked Jan 22, 2019 in Class 12 by kratos

+2 votes

1 answer

A balloon which always ******* spherical, has a variable diameter 2/3(3x +1). Find the rate of change of its volume with respect to x.

asked Jan 21, 2019 in Class 12 by kratos

+3 votes

1 answer

The side of an equilateral triangle is increasing at the rate of 2 cm/*. At what rate is its area increasing when the side of the triangle is 20 cm ?

asked Jan 16, 2019 in Class 12 by kratos

+2 votes

1 answer

Find the point on the curve y^2 = 8x + 3 for which the y-coordinate changes 8 times more than coordinate of x.

asked Jan 5, 2019 in Class 12 by kratos

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