Explanation:
The vertical component the velocity of the projectile is 15 m/s x sin 30 = 7.5 m/s.
The body is accelarating downwards at 10 m/s^2.
This means that every second its upward velocity reduces by 10 m/s.
So if the body is travelling upwards at 7.5 m/s then how long does it take for the velocity to become 0?
(7.5 m/s) / (10 m/s^2) = 0.75 s
The solid cylinder reaches the bottom first.
A solid object will always roll down the ramp faster than a hollow object of the same shape regardless of their exact mass or diameter.
The solid cylinder has a lower moment of inertia than the hollow one does. Although they have the same mass, all the hollow cylinder's mass is concentrated around its outer edge so its moment of inertia is higher.
The velocity would be greater for the material with radius of gyration k is lower of for which the moment of inertia is lower. Solid cylinder with k as 1/2 will have greater velocity as compared to hollow cylinder which has k as 1. As they have same mass and radius their energies at both the levels would remains same including the potential energy and energy lost due to friction.
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Answer:
jupiter
Explanation:
from the list, Jupiter is closest to the sun.
In physical science, there are two types of quantities. The scalar quantity and the vector quantity. The scalar quantity has only the magnitude while the vector quantity has both the magnitude and direction. Displacement is the distance from the starting point to the end point of an object.
The distance traveled by an object can be calculated by the equation,
D = s x t
where D is the distance, s is the speed, and t is time.
Note to convert the given dimensions properly to be able to cancel units from numerator and denominator of the fraction.
D = (100 km/h)(7.5 min)(1 h/60 min) = 12.5 km
This means that the object was just back to the original point. Hence, the displacement is equal to ZERO.
Answer:
go to this website
Explanation:
https://solarsystem.nasa.gov/asteroids-comets-and-meteors/overview/
