Hey there! Sign in to join this conversationNew here? Join for free

Plz help me how to do this I know it’s easy but it isn’t for me watch

    • Thread Starter
    Offline

    2
    ReputationRep:
    crumple
    concrete wall
    zone
    Fig. 2.1
    In a laboratory test, a car of mass 1200 kg is driven into a concrete wall, as shown in Fig. 2.1.
    A video recording of the test shows that the car is brought to rest in 0.36s when it collides with the wall. The speed of the car before the collision is 7.5 m / s.
    Calculate

    (i)
    the change of momentum of the car,
    • Welcome Squad
    Offline

    19
    ReputationRep:
    Welcome Squad
    Can you workout what the momentum before the collision is? Do you know what the formula for the change of momentum is? How would you use this to find the change in momentum?
 
 
 
Poll
Who is your favourite TV detective?
Useful resources

Study tools

Rosette

Essay expert

Learn to write like a pro with our ultimate essay guide.

Thinking about uni already?

Thinking about uni already?

See where you can apply with our uni match tool

Student chat

Ask a question

Chat to other GCSE students and get your study questions answered.

Creating

Make study resources

Create all the resources you need to get the grades.

Planner

Create your own Study Plan

Organise all your homework and exams so you never miss another deadline.

Resources by subject

From flashcards to mind maps; there's everything you need for all of your GCSE subjects.

Papers

Find past papers

100s of GCSE past papers for all your subjects at your fingertips.

Help out other students

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.