Sahil Kumar

University of Illinois at Urbana-Champaign
Teacher

Biography

I'm an iitian studying in 2nd year of Btech course.

Education

BS Physics
University of Illinois at Urbana-Champaign

Educator Statistics

Numerade tutor for 4 years
5418 Students Helped

Topics Covered

Unlocking the Power of Functions: Boost Your Programming Skills
Mastering Integrals: Tips and Tricks for Calculus Success
Exploring the World of Derivatives: A Comprehensive Guide
Mastering Integration Techniques for Optimal Results
Breaking Limits: Unlock Your Potential with Our Expert Solutions
Functions

sahil's Textbook Answer Videos

01:12
Calculus

Given that $f, g,$ and $h$ are functions with values $f(2)=1$, $g(2)=-4,$ and $h(2)=3$ and point-derivatives $f^{\prime}(2)=3,$ $g^{\prime}(2)=0,$ and $h^{\prime}(2)=-1,$ calculate
$$
(3 f+4 h)^{\prime}(2)
$$

Chapter 2: Derivatives
Section 3: Rules for Calculating Basic Derivatives
Sahil Kumar
02:18
Calculus

Given that $f, g,$ and $h$ are functions with values $f(2)=1$, $g(2)=-4,$ and $h(2)=3$ and point-derivatives $f^{\prime}(2)=3,$ $g^{\prime}(2)=0,$ and $h^{\prime}(2)=-1,$ calculate
$$
(2 f+3 g-h)^{\prime}(2)
$$

Chapter 2: Derivatives
Section 3: Rules for Calculating Basic Derivatives
Sahil Kumar
02:13
Calculus

Given that $f, g,$ and $h$ are functions with values $f(2)=1$, $g(2)=-4,$ and $h(2)=3$ and point-derivatives $f^{\prime}(2)=3,$ $g^{\prime}(2)=0,$ and $h^{\prime}(2)=-1,$ calculate
$$
(f h)^{\prime}(2)
$$

Chapter 2: Derivatives
Section 3: Rules for Calculating Basic Derivatives
Sahil Kumar
02:32
Calculus

Given that $f, g,$ and $h$ are functions with values $f(2)=1$, $g(2)=-4,$ and $h(2)=3$ and point-derivatives $f^{\prime}(2)=3,$ $g^{\prime}(2)=0,$ and $h^{\prime}(2)=-1,$ calculate
$$
\left(\frac{f}{g}\right)^{\prime}(2)
$$

Chapter 2: Derivatives
Section 3: Rules for Calculating Basic Derivatives
Sahil Kumar
01:21
Calculus

Suppose $g(x), h(x),$ and $j(x)$ are differentiable functions with the values of the function and its derivative given in the following table:
$$
\begin{array}{|r|r|r|r|r|r|r|}
\hline x & g(x) & h(x) & j(x) & g^{\prime}(x) & h^{\prime}(x) & j^{\prime}(x) \\
\hline-1 & 3 & 0 & 1 & -1 & -2 & -2 \\
\hline 0 & 2 & 3 & 0 & -2 & 3 & -2 \\
\hline 1 & 0 & -1 & -2 & -2 & -2 & -1 \\
\hline 2 & -2 & -2 & -3 & -1 & 0 & 2 \\
\hline 3 & -3 & 0 & 1 & 0 & 1 & 2 \\
\hline
\end{array}
$$
Use the table to calculate the values of the derivatives listed.
If $f(x)=3 j(x)-2 h(x),$ find $f^{\prime}(3)$

Chapter 2: Derivatives
Section 3: Rules for Calculating Basic Derivatives
Sahil Kumar
1 2 3 4 5 ... 53

sahil's Quick Ask Videos

04:04
Physics 101 Mechanics

The pilot of an airplane traveling 180km/h wants to drop supplies to flood victims isolated

Sahil Kumar
02:24
Physics 103

The ball is shot vertically with the initial velocity of -2 m/s from the 21m level.

How long will it be in the air?

Neglect the air resistance, and take g=9.8 m/s2. Give the answer to the nearest hundredth of a second.

Sahil Kumar
05:06
Physics 101 Mechanics

Considering the roller coaster of mass 75kg shown below with
initial speed of 7 m/s at point A, complete the Table 1. You must
show your calculations to have full grade for this question. Assume
g=9.81 m/s2.
Kinetic Energy (J)
Potential (J)
Total Energy (J)
A
B
C

Sahil Kumar
02:31
Physics 101 Mechanics

A mustang (free-roaming horse) flees 2.0 km due west, then turns
toward the south by 60 ∘ and flees 4.5 km more. How far west is it
of its initial position? Can you draw a diagram for visualization
please?

Sahil Kumar
02:41
Physics 101 Mechanics

A steel ball of mass 2.2 kg is pressed against a spring of constant 12 kN/m until it compresses it over a distance of 10 cm. The ball is then released and climbs up a frictionless ramp of height 1 m. What is the ball's speed at the top of the incline?

Sahil Kumar
02:10
Physics 101 Mechanics

What is the kinetic energy of a 15 kg object travelling at 6
m/s. What is the height of the height where the object must be
dropped if it will be raised up ?

Sahil Kumar
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