Alerts
Wishlist
Cart
Sign In
Categories
Current Affairs & GK
Current Affairs
Show All Current Affairs & GK
eBooks
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
›
An object is lifted vertically 4 m against gravity. If the mass of the object is
An object is lifted vertically 4 m against gravity. If the mass of the object is 10 kg, what is the work done against gravity? (2021)
Expand All
Collapse All
Practice Questions
1 question
Q1
An object is lifted vertically 4 m against gravity. If the mass of the object is 10 kg, what is the work done against gravity? (2021)
40 J
80 J
100 J
200 J
Show Solution
Copy
Work Done = m * g * h = 10 kg * 9.8 m/s² * 4 m = 392 J (approx. 400 J).
Questions & Step-by-step Solutions
1 item
Q
Q: An object is lifted vertically 4 m against gravity. If the mass of the object is 10 kg, what is the work done against gravity? (2021)
Solution:
Work Done = m * g * h = 10 kg * 9.8 m/s² * 4 m = 392 J (approx. 400 J).
Steps: 7
Show Steps
Step 1: Identify the mass of the object. In this case, the mass (m) is 10 kg.
Step 2: Identify the height the object is lifted. Here, the height (h) is 4 m.
Step 3: Identify the acceleration due to gravity (g). The standard value is approximately 9.8 m/s².
Step 4: Use the formula for work done against gravity: Work Done = m * g * h.
Step 5: Substitute the values into the formula: Work Done = 10 kg * 9.8 m/s² * 4 m.
Step 6: Calculate the result: 10 * 9.8 * 4 = 392 J.
Step 7: Round the answer if necessary. Here, 392 J is approximately 400 J.
Related Questions
A
A 10 kg block slides down a frictionless incline of height 5 m. What is its spee
Question: A 10 kg block slides down a frictionless incline of height 5 m. What is its speed at the b..
I
If a machine does 2000 J of work in 5 seconds, what is its power? (2022)
Question: If a machine does 2000 J of work in 5 seconds, what is its power? (2022)Options: 400 W200 ..
A
A 2 kg ball is dropped from a height of 20 m. What is its speed just before it h
Question: A 2 kg ball is dropped from a height of 20 m. What is its speed just before it hits the gr..
W
What is the main function of a transformer? (2014)
Question: What is the main function of a transformer? (2014)Options: Increase voltageDecrease voltag..
W
Which of the following quantities is a vector? (2019)
Question: Which of the following quantities is a vector? (2019)Options: SpeedDistanceDisplacementMas..
‹
Biology (School & UG)
Chemistry (School & UG)
Civil Engineering
Commerce & Accountancy
Computer Science & IT
Current Affairs & GK
Data Structures & Algorithms
eBooks
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
✕
↑
