With total velocity , the horizontal component of velocity is
Then the horizontal displacement over the first minute is
Answer:
she will fall to an height of 21.09° only, beyond such an height ; the spring will break.
Katya will not be able to swing to the platform because the angle will be between -21.09° and 21.09° from vertical
Explanation:
If the distance is from the point of angle A to angle B , partitioned by a perpendicular line in the middle then, The conservation of energy between A and B can be expressed as :
where ; the height h =
T = mg(3 cos θ - 1)
Given that:
T = 180 % = 1.8 mg
Then:
1.8 mg = mg(3 cos θ - 1)
2.8 mg = (3 cos θ - 1)
cos θ =
θ = cos ⁻¹ (0.933)
θ = 21.09°
Therefore, she will fall to an height of 21.09° only, beyond such an height ; the spring will break.
Katya will not be able to swing to the platform because the angle will be between -21.09° and 21.09° from vertical
Answer:
It is the force that is present because of the mass of our planet. it's what keeps us stuck on the surface of Earth rather than floating off into space.
Answer:
Explanation:
Let the mass of the other car is "m" and its kinetic energy is
now the mass of the first car is two and half times and its kinetic energy is half that of other car
so we will have
now speed of both cars is increased by value of 9 m/s
so now we will have same kinetic energy for both cars
so speed of first car is