All Categories
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
›
A 1000 kg car is moving at a speed of 36 km/h. What is its kinetic energy? (1 km
A 1000 kg car is moving at a speed of 36 km/h. What is its kinetic energy? (1 km/h = 1/3.6 m/s) (2000)
Expand All
Collapse All
Practice Questions
1 question
Q1
A 1000 kg car is moving at a speed of 36 km/h. What is its kinetic energy? (1 km/h = 1/3.6 m/s) (2000)
500 J
1000 J
2000 J
5000 J
Show Solution
Copy
First convert speed: 36 km/h = 10 m/s. KE = 0.5 × m × v² = 0.5 × 1000 kg × (10 m/s)² = 0.5 × 1000 × 100 = 50000 J.
Questions & Step-by-step Solutions
1 item
Q
Q: A 1000 kg car is moving at a speed of 36 km/h. What is its kinetic energy? (1 km/h = 1/3.6 m/s) (2000)
Solution:
First convert speed: 36 km/h = 10 m/s. KE = 0.5 × m × v² = 0.5 × 1000 kg × (10 m/s)² = 0.5 × 1000 × 100 = 50000 J.
Steps: 9
Show Steps
Step 1: Identify the mass of the car, which is 1000 kg.
Step 2: Identify the speed of the car, which is 36 km/h.
Step 3: Convert the speed from km/h to m/s using the conversion factor (1 km/h = 1/3.6 m/s).
Step 4: Calculate the speed in m/s: 36 km/h = 36 / 3.6 = 10 m/s.
Step 5: Use the formula for kinetic energy (KE): KE = 0.5 × m × v².
Step 6: Substitute the values into the formula: KE = 0.5 × 1000 kg × (10 m/s)².
Step 7: Calculate (10 m/s)², which is 100 m²/s².
Step 8: Multiply: 0.5 × 1000 kg × 100 m²/s² = 50000 J.
Step 9: Conclude that the kinetic energy of the car is 50000 Joules.
Related Questions
F
Find the value of 5! (5 factorial). (2019)
Question: Find the value of 5! (5 factorial). (2019)Options: 12010015090Correct Answer: 120Solution:..
W
What is the value of (3 + 5) × (2 - 1)? (2020)
Question: What is the value of (3 + 5) × (2 - 1)? (2020)Options: 816106Correct Answer: 8Solution: (3..
A
A 0.5 kg ball is thrown vertically upwards with a speed of 20 m/s. What is the m
Question: A 0.5 kg ball is thrown vertically upwards with a speed of 20 m/s. What is the maximum hei..
I
If a 2 kg object is lifted to a height of 10 m, what is the potential energy gai
Question: If a 2 kg object is lifted to a height of 10 m, what is the potential energy gained by the..
C
Calculate the value of 12 × 8 - 24. (2021)
Question: Calculate the value of 12 × 8 - 24. (2021)Options: 72964860Correct Answer: 72Solution: 12 ..
‹
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
✕
↑
