The power exerted by the cyclist is determined as 50 W.
<h3>
Average power exerted by the cyclist</h3>
The power exerted by the cyclist is calculated as follows;
P = FV
where;
- F is the applied force
- V is velocity
P = 20 x 2.5
P = 50 W
Thus, the power exerted by the cyclist is determined as 50 W.
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Answer: screen
A mixture of sand, salt and iron can be separated using magnet, filter paper and water. Iron being a magnetic material, can be separated using magnet. The rest of the mixture, salt and sand can be mixed in water. The salt would dissolve in water but sand would not because sand is insoluble in water. This mixture can be filtered using a filter paper. The filter has very minute openings through which sand would not pass through and get separated. Then, salty water can be heated. The water would evaporate leaving behind salt.
In this whole process, screen would not be useful because it would depend on the size of the sand particles and available screen.
While the Orion constellation is named after the hunter in Greek mythology, it is anything but stealthy. Orion, which is located on the celestial equator , is one of the most prominent and recognizable constellations in the sky and can be seen throughout the world.
Answer:
The acceleration is in 2 D as in between east and south.
Explanation:
mass, m = 50 kg
acceleration, a = 0.25 m/s^2 horizontal
acceleration of elevator, a' = 1 m/s^2 downwards
When a person on the ground the resultant acceleration of the person with respect to the ground is between east and south direction so the path os parabolic in nature. It graph is shown below:
Answer:
The time spent in air by the car is 2.19 s
The height of the cliff is 58.5 m
Explanation:
Given;
initial velocity of the car, u = 16 m/s
horizontal distance traveled, R = 35 m
The horizontal distance or range of a projectile is given as;
R = vt
where;
t is the time spent in air by the projectile
t = R/v
t = 35 / 16
t = 2.19 s
The height of the cliff is given as;
h = ut + ¹/₂gt²
h = (16 x 2.19) + ¹/₂(9.8)(2.19)²
h = 58.5 m