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A trolley of negilible mass on horizontal tracks is at rest. A person of mass 50kg is standing on the trolley with a bag of mass 10kg. The person throws the bag off the trolley horizontally with a velocity of 3m/s. Calculate the velocity of the man.

Establish what information you have been given in the question (mass of person=50kg, mass of bag=10kg, velocity of bag=3m/s, start velocity of both=0m/s). Use the equation momentum=mv and the principle of...

Answered by Ella C. • Maths tutor

3332 Views

What is the best way to structure an essay?

The key to writing a successful essay, whether in exams or coursework, is a really strong plan. I would advise a quick brainstorming session where you write down all your ideas, and then organise them in ...

Answered by Grace C. • English Literature tutor

3361 Views

How do I analyse an unseen text?

The first thing to do is read the question very thoroughly, and underline the key terms. Really zero in on exactly what you're being asked. Are there any specific features you need to discuss (such as lan...

Answered by Rory R. • English tutor

3058 Views

Show that G = {1, -1} is a group under multiplication.

We must prove the four axioms of a group are satisfied (i.e Identity, Associativity, Closure, and Invertibility). Identity: The identity element is an element e in G such that e

Answered by Ross T. • Further Mathematics tutor

19298 Views

How are you meant to talk about context when answering an A-Level literature paper?

Handling contexts surrounding literary texts is a difficult skill, even for university students. The crucial aspect of doing it well is to make sure it remains relevant to the rest of your argument. Consi...

Answered by Joe W. • English tutor

1844 Views