A Level Maths Mechanics Year 2 Chapter 6: Mini test

In this chapter, INCORRECT modelling assumption

• The object is modelled as a particle
• Resistive forces are negligible
• The object moves in 3-dimensional space
• The object moves in a plane

The vertical component of U is

• Usinα
• Ucosα
• Utanα
• Ucos(90-α)

We can use speed = distance / time for

• all parts of a question
• the vertical component
• the horizontal component

What's TRUE at C (taking ^ as positive)?

• v = 0
• horizontal s = 20
• vertical s = 20
• vertical s = -20

A valid step in finding the distance OC (taking ^ as positive)

• Find t when vertical v = 0 and multiply by 2
• Find t when vertical s = 0
• Find t when vertical s = -20
• Find t when vertical s = 12