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 1 kg mass is dropped from a height of 1 m. What is its speed just before it hi
A 1 kg mass is dropped from a height of 1 m. What is its speed just before it hits the ground?
Expand All
Collapse All
Practice Questions
1 question
Q1
A 1 kg mass is dropped from a height of 1 m. What is its speed just before it hits the ground?
1 m/s
2 m/s
3 m/s
4 m/s
Show Solution
Copy
Using conservation of energy, v = √(2gh) = √(2 * 9.8 * 1) = 4.43 m/s.
Questions & Step-by-step Solutions
1 item
Q
Q: A 1 kg mass is dropped from a height of 1 m. What is its speed just before it hits the ground?
Solution:
Using conservation of energy, v = √(2gh) = √(2 * 9.8 * 1) = 4.43 m/s.
Steps: 7
Show Steps
Step 1: Understand that when the mass is dropped, it has potential energy due to its height.
Step 2: Recognize that as it falls, this potential energy converts to kinetic energy, which is the energy of motion.
Step 3: Use the formula for speed just before hitting the ground, which is derived from the conservation of energy: v = √(2gh).
Step 4: Identify the values: g (acceleration due to gravity) is approximately 9.8 m/s², and h (height) is 1 m.
Step 5: Plug the values into the formula: v = √(2 * 9.8 * 1).
Step 6: Calculate the value: v = √(19.6).
Step 7: Find the square root of 19.6, which is approximately 4.43 m/s.
Related Questions
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 ..
W
What is the value of 5C2?
Question: What is the value of 5C2?Options: 1020155Correct Answer: 10Solution: 5C2 = 5! / (2!(5-2)!)..
A
A 10 kg object is moving with a speed of 3 m/s. If it comes to a stop, how much
Question: A 10 kg object is moving with a speed of 3 m/s. If it comes to a stop, how much work is do..
A
A 2 kg ball is thrown vertically upwards with a speed of 20 m/s. What is the max
Question: A 2 kg ball is thrown vertically upwards with a speed of 20 m/s. What is the maximum heigh..
F
Find the value of tan(45°).
Question: Find the value of tan(45°).Options: 01undefined√3Correct Answer: 1Solution: tan(45°) = 1...
‹
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
✕
↑
