vi
What is the symbol for initial velocity?
Freefall
What is an object where the only force acting is due to gravity?
Unit of momentum
What is kgms-1?
Unit of work
What is joules (J)?
ac
What is centripetal acceleration?
Units of torque
What is Nm?
Force due to gravity on a 2kg object
What is 19.6N?
Unit of impulse
What is kgms-1?
Unit of power
What is watts (W)?
Fc
What is centripetal force?
Initial velocity of an object dropped from a height of 10m
What is zero?
Acceleration due to gravity on a 2kg object
What is -9.8 ms-2?
Formula for impulse
What is {delta}p=F{delta)t?
Formula for power
What is P=E/t
Formula for centripetal force
What is Fc=mv2/r?
State of an object that is not accelerating, either linearly or rotationally
What is equilibrium?
Speed of an object that has fallen 10 m after being dropped
What is 14 ms-1?
Change in momentum of a 1.0 kg ball travelling to the right with a speed of 8 ms-1 after it bounces off a wall and has a speed of 6 ms-1 to the left
What is 14 ms-1 to the left?
Hooke's Law
What is F=-kx?
Centripetal force to keep a cyclist of mass 90kg riding around a circular bend of radius 7.0 m at a constant speed of 10 ms-1.
What is 1300N?
Conditions for equilibrium
What is no net force and no net torque?
Time for a dropped object to fall 10 m?
What is 1.4 s?
Force acting on a 1.0 kg ball travelling to the right with a speed of 8 ms-1 when it bounces off a wall (time of 0.10 s) and then has a speed of 6 ms-1 to the left
What is 140 N?
Ep=1/2kx2
What is the formula for elastic potential energy?
An object can accelerate but have constant speed
What is velocity has both speed and direction?