Answer:
t = 3.48 s
Explanation:
The time for the maximum height can be calculated by taking the derivative of height function with respect to time and making it equal to zero:
![h(t) = -16t^2+v_ot+h_o\\\\\frac{dh(t)}{dt}=0=-32t+v_o\\\\v_o = 32t](https://tex.z-dn.net/?f=h%28t%29%20%3D%20-16t%5E2%2Bv_ot%2Bh_o%5C%5C%5C%5C%5Cfrac%7Bdh%28t%29%7D%7Bdt%7D%3D0%3D-32t%2Bv_o%5C%5C%5C%5Cv_o%20%3D%2032t)
where,
v₀ = initial speed = 110 ft/s
Therefore,
![110 = 32t\\\\t = \frac{110}{32}\\\\](https://tex.z-dn.net/?f=110%20%3D%2032t%5C%5C%5C%5Ct%20%3D%20%5Cfrac%7B110%7D%7B32%7D%5C%5C%5C%5C)
<u>t = 3.48 s</u>
Answer:
2m/s²
Explanation:
velocity = displacement (distance in a specified direction /time
Answer:
The answer is C
Explanation:
The magnitude of the gravitational force depends inversely on the square of the radial distance between the centers of the two masses. Thus, essentially, the force can only fall to zero, when the denominator that is r becomes infinite.
Answer:
Answer:
3 g/cm
Explanation:
Mass of stone = 30 g
Initial volume of cylinder = 50 cm
Increased volume = 60 cm
Volume = 60-50
= 10 cm
Density of stone = Mass/Volume
= 30/10
= 3 g/ml as 1 ml = 1 cm
= 3 g/ml
Explanation:
I am walking to the end of the room holding three textbooks.
Playing tug of war
Moving boxes to move out of your house