Answer:
A 0m
Explanation:
The horse runs clockwise round the strack, then goes back to the start line ending up back at the same place when it started.
Answer:
the work done by friction on the car is 524,582 J.
Explanation:
Given;
mass of the roller coaster, m = 800 kg
distance moved by the coaster, d = 225 ft = 68.58 m
final velocity of the coaster, v = 80 mi/h = 35.76 m/s
The time taken for the coaster to drop down the hill is calculated as;

The work done by friction on the car is calculated as;

Therefore, the work done by friction on the car is 524,582 J.
Answer:
the interference of two or more waves of equal frequency and phase, resulting in their mutual reinforcement and producing a single amplitude equal to the sum of the amplitudes of the individual waves.
Answer with Explanation:
We are given that
Velocity,v=24 m/s west
Acceleration,a=
(N of W)
Horizontal component of acceleration=Tangential acceleration
Tangential acceleration,
Radial acceleration=Vertical acceleration=

Radial acceleration,



Time,

