All Categories
Alerts
Wishlist
Cart
Sign In
Categories
Current Affairs & GK
Current Affairs
Show All Current Affairs & GK
General Aptitude
Arithmetic Aptitude
Data Interpretation
Show All General Aptitude
General Knowledge
Basic General Knowledge
General Science
Show All General Knowledge
Medical Science
Anatomy
Biochemical Engineering
Biochemistry
Biotechnology
Microbiology
Show All Medical Science
Technical
Database
Digital Electronics
Electronics
Networking
Show All Technical
Verbal and Reasoning
Logical Reasoning
Verbal Ability
Verbal Reasoning
Show All Verbal and Reasoning
›
A 4 kg object is moving with a velocity of 3 m/s. What is its kinetic energy?
A 4 kg object is moving with a velocity of 3 m/s. What is its kinetic energy?
Expand All
Collapse All
Practice Questions
1 question
Q1
A 4 kg object is moving with a velocity of 3 m/s. What is its kinetic energy?
18 J
24 J
36 J
12 J
Show Solution
Copy
Kinetic energy KE = 0.5 * m * v² = 0.5 * 4 kg * (3 m/s)² = 18 J.
Questions & Step-by-step Solutions
1 item
Q
Q: A 4 kg object is moving with a velocity of 3 m/s. What is its kinetic energy?
Solution:
Kinetic energy KE = 0.5 * m * v² = 0.5 * 4 kg * (3 m/s)² = 18 J.
Steps: 10
Show Steps
Step 1: Identify the mass of the object. The mass (m) is given as 4 kg.
Step 2: Identify the velocity of the object. The velocity (v) is given as 3 m/s.
Step 3: Write down the formula for kinetic energy (KE). The formula is KE = 0.5 * m * v².
Step 4: Substitute the mass into the formula. Replace m with 4 kg: KE = 0.5 * 4 kg * v².
Step 5: Substitute the velocity into the formula. Replace v with 3 m/s: KE = 0.5 * 4 kg * (3 m/s)².
Step 6: Calculate (3 m/s)². This equals 9 m²/s².
Step 7: Now substitute back into the formula: KE = 0.5 * 4 kg * 9 m²/s².
Step 8: Multiply 0.5 * 4 kg to get 2 kg.
Step 9: Now multiply 2 kg by 9 m²/s² to get 18 J.
Step 10: The kinetic energy of the object is 18 Joules (J).
Related Questions
A
A 1 kg mass is attached to a spring with a spring constant of 200 N/m. What is t
Question: A 1 kg mass is attached to a spring with a spring constant of 200 N/m. What is the maximum..
W
What is the wavelength of a photon with a frequency of 6 x 10^14 Hz?
Question: What is the wavelength of a photon with a frequency of 6 x 10^14 Hz?Options: 5 x 10^-7 m3 ..
F
Find the value of tan(45°).
Question: Find the value of tan(45°).Options: 01undefined√3Correct Answer: 1Solution: tan(45°) = 1...
W
What is the derivative of f(x) = x^3 - 3x^2 + 4x - 5?
Question: What is the derivative of f(x) = x^3 - 3x^2 + 4x - 5?Options: 3x^2 - 6x + 43x^2 - 6x2x^2 -..
A
A 3 kg object is subjected to a net force of 12 N. What is its acceleration?
Question: A 3 kg object is subjected to a net force of 12 N. What is its acceleration?Options: 2 m/s..
‹
Biology (School & UG)
Chemistry (School & UG)
Civil Engineering
Commerce & Accountancy
Computer Science & IT
Current Affairs & GK
Data Structures & Algorithms
Electrical & Electronics Engineering
English (School)
General Aptitude
General Knowledge
General Knowledge & Current Affairs
Languages & Literature
Law & Legal Studies
Major Competitive Exams
Mathematics (School)
Mechanical Engineering
Medical Science
Physics (School & Undergraduate)
Quantitative Aptitude & Reasoning
Social Science (School)
Technical
Verbal and Reasoning
Vocational & Skill Development
›
Soulshift Feedback
×
On a scale of 0–10, how likely are you to recommend
The Soulshift Academy
?
0
1
2
3
4
5
6
7
8
9
10
Not likely
Very likely
✕
↑
