Change in velocity divided by time
So to work out the Δvelocity you do final speed- initial speed
This will give you a negative value as deceleration is the same as the minus value of acceleration
Answer:
α = 2.6 +1.7 t - 0.14 t³
Explanation:
Given that
ω(t) = at + bt² - ct⁴
where a = 2.6 rad/s², b = 0.85 rad/s³ and c = 0.035 rad/s⁵
We know that angular acceleration is the rate of change of angular velocity
α = dω/dt
ω(t) = at + bt² - ct⁴
dω/dt= a + 2 b t - 4 ct³
So
α = a + 2 b t - 4 ct³
By putting the values of a b and c
α = a + 2 b t - 4 ct³
α = 2.6 + 2 x 0.85 t - 4 x 0.035 t³
α = 2.6 +1.7 t - 0.14 t³
Answer:
Since 1997: A second is a time equal to 9,192,631,770 periods of radiation corresponding to the transition between two hyperfine levels of the ground state of the cesium-133 atom.
This definition refers to a caesium atom at rest at a temperature of 0 K
Explanation:
Answer:
USING LAW OF CONSERVATION OF ENERGY
Explanation:
As we know that energy can not be created nor be destroyed.The pendulum cannot continue moving on its own because it meets energy losses due to friction.Its energy is converted into heat energy which dissipates in the air
