0.1 m/s^2 (final velocity-initial velocity) and then divide with the time taken
Answer:
height of the cliff = 74.529 meters
Explanation:
in this problem we will write projectile motion equations in x and y directions.
writing the equation of motion
where s is the distance traveled in x or y direction, u the initial velocity in x or y direction, t is the time travelled, a is the acceleration along x or y direction.
therefore along y direction 
= 0 and 
= -9.8 m/
.
therefore along y direction the equation becomes 
applying the values 
True. Since Inertia states this law, we are bound to believe greater mass = greater resistance in change of motion
Graphite is great lubricant because each carbon atom forms weak covalent bonds with three other carbon atoms.
Diamond and graphite both are entirely made up of carbon but both the elements are completely different because of the bonding of carbon atoms. In graphite the carbon atoms form weak covalent with the other three carbon atom due to which there is less or no force between the atoms, and makes the graphite very soft and slippery, and graphite act as lubricant.
The force exerted by the person is 600 N because to find the original force you would add back 100 from friction
