Answer:
The height jumped by the sprinter is 5.10 meters.
Explanation:
It is given that,
Speed of the sprinter, v = 10 m/s
We need to find the height jumped by the sprinter his or her kinetic energy gets converted into upward motion. It can be calculated using conservation of energy as :


g is the acceleration due to gravity

h = 5.10 meters
So, the height jumped by the sprinter is 5.10 meters. Hence, this is the required solution.
Answer: W is nucleus, Y is Neutron, Z is proton, and X is electron
Explanation:
Let the forces on two pillars are N1 and N2
so we will have force balance equation as


also by torque balance we will have
![N_2\times L = 40000 ]times \frac{L}{2} + 19600 \times 8](https://tex.z-dn.net/?f=N_2%5Ctimes%20L%20%3D%2040000%20%5Dtimes%20%5Cfrac%7BL%7D%7B2%7D%20%2B%2019600%20%5Ctimes%208)
here we know that
L = 20 m



Answer:
The Convex Mirror is used.
Explanation: