Answer:
Explanation:
Given
Time taken to reach ground is ![t=2.7\ s](https://tex.z-dn.net/?f=t%3D2.7%5C%20s)
Malda initial velocity ![u=95\ cm/s](https://tex.z-dn.net/?f=u%3D95%5C%20cm%2Fs)
Let h be the height of Cliff
using ![h=ut+\frac{1}{2}at^2](https://tex.z-dn.net/?f=h%3Dut%2B%5Cfrac%7B1%7D%7B2%7Dat%5E2)
where, u=initial velocity
t=time
In first case chirpy drop downward thus u=0
![h=0+\frac{1}{2}(9.8)(2.7)^2](https://tex.z-dn.net/?f=h%3D0%2B%5Cfrac%7B1%7D%7B2%7D%289.8%29%282.7%29%5E2)
![h=35.72\ m](https://tex.z-dn.net/?f=h%3D35.72%5C%20m)
For Milada there is horizontal velocity u=95 cm/s=0.95 m/s[/tex]
time taken to reach the ground will be same so distance traveled in this time with 0.95 m/s horizontal velocity is given by
![R=u\times t](https://tex.z-dn.net/?f=R%3Du%5Ctimes%20t)
Explanation:
A. Walk the person around
Answer:
a - As long as the time between 2 events is reconcilable with a light signal, the time between the events, in that frame, can be determined.
Answer:
Option B. O because the net force was 5 N in Alfredo's direction
Explanation:
To know the the correct answer to the question given above, we shall determine the net force acting on the bat. This can be obtained as follow:
Force of pull by Mason (Fₘ) = 15 N
Force of pull by Alfredo (Fₐ) = 20 N
Net force (Fₙ) =?
Fₙ = 20 – 15
Fₙ = 5 N in Alfredo's direction
From the calculation made above, we can see that the net force is 5N in Alfredo's direction. This is the reason why Alfredo end up having the bat.
To calculate the gravitational force acting on an object given the mass and the acceleration due to gravity, use the following formula.
Fg = m • g
Fg = 1.3 kg • 9.8 m/s^2
Fg = 12.74 N or about 12.7 N.
The solution is C. 12.7 N.