Kajal Raghubanshi

Patna women's college
educator

Biography

I am educator at DPS Patna.

Education

BS Science
Patna women's college

Educator Statistics

Numerade tutor for 5 years
2952 Students Helped

Topics Covered

Exploring the World of Derivatives: A Comprehensive Guide
Applications of the Derivative
Mastering Motion: Achieving Efficiency Along a Straight Line
Discovering the Fundamentals: Newton's Laws of Motion Explained
Discover the Power of Gravitation: Exploring the Science Behind It

KAJAL's Textbook Answer Videos

02:57
Finite Mathematics and Calculus with Applications

A manufacturer has a steady annual demand for $13,950$ cases of sugar. It costs $\$ 9$ to store 1 case for 1 year, $\$ 31$ in setup cost to produce each batch, and $\$ 16$ to produce each case. Find the number of cases per batch that should be produced.

Chapter 14: Applications of the Derivative
Section 3: Further Business Applications: Economic Lot Size; Economic Order Quantity; Elasticity of Demand
Kajal Raghubanshi
00:59
Applied Physics

A semi-trailer truck traveling $10 \overline{0} \mathrm{~km} / \mathrm{h}$ continues for $2.75 \mathrm{~h}$. How far does it go?

Chapter 4: Motion
Section 1: Speed Versus Velocity
Kajal Raghubanshi
01:10
Conceptual Physics

One airplane travels due north at $300 \mathrm{~km} / \mathrm{h}$ whide another travels due south at $300 \mathrm{~km} / \mathrm{h}$. Are their speeds the same? Are their velocities the same? Explain.

Chapter 3: Linear Motion
Kajal Raghubanshi
01:29
Conceptual Physics

Can an automobile with a velocity toward the north simultaneously have an acceleration toward the south? Explain.

Chapter 3: Linear Motion
Kajal Raghubanshi
02:13
Conceptual Physics

You're in a car traveling at some specified speed limit. You see a car moving at the same speed coming toward you. How fast is the car approaching you, compared with the speed limir?

Chapter 3: Linear Motion
Kajal Raghubanshi
01:22
Conceptual Physics

Correct your friend who says, "The dragsrer rounded the curve at a constant velocity of $100 \mathrm{~km} / \mathrm{h}$."

Chapter 3: Linear Motion
Kajal Raghubanshi
1 2

KAJAL's Quick Ask Videos

02:40
Calculus 1 / AB

A rock is dropped from the edge of a cliff that is 320 meters above the water. What is its velocity at impact? (Hint: Use the height function h(t) = 5t^2 + v0t + s0 for free-falling objects.)

Kajal Raghubanshi
01:41
Algebra and Trigonometry

A kite is flying 82 ft above the ground and its string is pulled. The angle of elevation of the kite is 54°. Find the length of the string. Round to the nearest tenth of a foot.

Kajal Raghubanshi
01:08
Algebra

A ball is kicked at a 53-degree angle with an initial speed of 12 m/s. What is the initial horizontal velocity?

Kajal Raghubanshi
02:48
Calculus 3

Find acceleration
A child on a skateboard (that has no wheels) has a total mass of 88 kg and is being driven up a slope by a man with an applied force of about 919N. We know that this slope (with respect to the horizontal) is at an incline with an angle of about 43 degrees. The friction coefficient between the child on the board and this slope is 0.11. Calculate the acceleration of the child on the board using m/s^2.

Kajal Raghubanshi
02:09
Physics 101 Mechanics

An airplane has an effective wing surface area of 12 m2 that is
generating the lift force. In level flight the air speed over the
top of the wings is 103 m/s, while the air speed beneath the wings
is 92 m/s. What is the weight of the plane?

Kajal Raghubanshi
02:20
Physics 101 Mechanics

A 3 kg steel ball moving at 8 m/s collides with a stationary
steel ball of mass 2 kg. After the collision, both balls move in
the same direction. The velocity of the 3 kg ball is 4 m/s after
the collision. What is the velocity of the 2 kg ball after the
collision?

Kajal Raghubanshi
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