Get an answer in 5 minutes

We'll notify as soon as your question has been answered.

Plus iconAsk a question to our educators
PHYSICS
Asked by Anisa

It takes 90 seconds to fill a cars petrol tank The petrol tank has a capacity of 45 L The pump has to lift the petrol 4m from the storage tank underneath the forecourt. 1 L of petrol weighs 6.8N How much work does the pump do in pumping the petrol?

In order to fill the tank completely the pump would’ve had to lift 45 L of petrol by 4m. We can calculate this using the gravitational potential energy formula: E = mgh where m is the mass, g is acceleration due to gravity and h is the height difference. Since the question told us that 1 litre of petrol weighs 6.8N, the total weight of the petrol is 45 * 6.8 = 306N note that weight = mg so we now can plug this value into the formula: E = 306 * 4 = 1224 Joules

Hubert's profile picture
Verified
Hubert Kaluzny
·

1.1k students helped

Similar Physics questions

What is Q&A on Scoodle?

At Scoodle we understand that everyone learns in a different way. Some people learn through practice, using essays and notes; others prefer video lessons to watch and learn, some just need help with a specifically hard question, while some learn best 1-on-1 tutoring sessions. At Scoodle we cater for all types of learning styles and needs. From GCSE Maths video lessons to A-level English essays and specialist educators in every subject - we’ve got you covered.

Faces of students on ScoodleFaces of students on ScoodleFaces of students on Scoodle
Scoodle has helped over 131,000 students so far

5 Physics tutors available now

Need help with Physics?

Getting expert help from a tutor is a great way to improve your Physics grades.

Badge showing the text 'New'Discover learning resources by tutors

Learn Physics with Video Lessons
What is Electricity? A GCSE refresher course
11m · 3 videos
Jennifer's profile picture
Jennifer Taylor
·

1.3k students helped

What is Electricity? A GCSE refresher course
What is Momentum?
21m · 5 videos
Jennifer's profile picture
Jennifer Taylor
·

1.3k students helped

What is Momentum?
Energy 101: The Basics
15m · 3 videos
Jennifer's profile picture
Jennifer Taylor
·

1.3k students helped

Energy 101: The Basics
Atomic Theory and Radioactivity
31m · 5 videos
Jennifer's profile picture
Jennifer Taylor
·

1.3k students helped

Atomic Theory and Radioactivity
Fission and Fusion
24m · 4 videos
Jennifer's profile picture
Jennifer Taylor
·

1.3k students helped

Fission and Fusion
Electricity 102 : Series and Parallel Circuits
19m · 3 videos
Jennifer's profile picture
Jennifer Taylor
·

1.3k students helped

Electricity 102 : Series and Parallel Circuits