A Level Maths Mechanics Year 1 Chapter 10: Mini test

Resultant Force F₁+F₂: F₁=2i+3j N, F₂=3i+2j N

• i+j
• 5i+5j
• 6i+6j N
• 5i+5j N

F=ma is

• Newton's 1st law
• Newton's 2nd law
• Newton's 3rd law
• Newton's 4th law

A light inextensible string will have ...

• no mass, varying tension
• no mass, equal tension
• mass, equal tension
• mass, varying tension

Pully off a table ... B hits the ground ... Resistive force on A is friction

• A stops
• A moves with constant speed
• A decelerates and stops
• A decelerates, stops then moves backwards

Vertical pully ... Q hits the ground ... To find how much higher P travels, we can use

• a=9.8
• v=0
• P doesn't travel any higher
• a=-9.8