A person walkes 500 metres in 80 seconds What is their speed.
6.25 m/s
Name a 3 things that affects Thinking distance
Tiredness
Distractions
Alcohol
Drugs
Speed
In which section is the object travelling the fastest
3
A= Air resistance
B=Drag
Describe the motion of this car
Constant speed
A car travelling at 5 m/s accelerates to 30 m/s in 5 seconds. What is their acceleration
5
Name 3 things that affects Braking distance
Worn tyres
worn brakes
Wet or icy roads
more passengers or luggage (mass)
Speed
What is the speed of the car between 25 and 30 sec
4 m/s
What is the resultant force
100N
Which Formula is linked to Newtons Second law
F=ma
What is the unit of acceleration
m/s2
What is the thinking time of the driver
2 seconds
How is the object travelling in section B
Constant speed
What is the Cyclists motion
Acceleration
The cyclist has a mass of 50 kg what is his acceleration
2m/s2
A car has an acceleration of 6m/s2 how long does it take to speed up from 10 m/s to 34 m/s
4 seconds
What is the braking distance of the car
12 m
Describe the forces on the object during section C.
Balanced/equal
Which of these Quantities is a Scalar
Weight
Velocity
Acceleration
Speed
Speed
What is the acceleration of the car
0.5 m/s2
What is the value of acceleration due to gravity
10 m/s2
How do you calculate Stopping distance (formula)
Thinking Distance + Braking distance
How far does car travel between 30 and 50 s
250 m
What is the Weight of a 100 kg mass on earth and what is its unit
1000 N
How do we know these are action reaction forces
Act on two objects