<span>This projectile has been thrown in an oblique movement, so it’s moving in x and in y at the same time. Vy varies due to gravity, and Vx is a constant as there is no gravity in the horizontal direction. In order to calculate Vx, you have to use the angle:
Vx=V*cosa=12m/s*cos(14.2)= 11.6m/s
So now you should use Vx the same way it is used in a uniform linear movement.
d=v*t
dx=vx*t
t=dx/vx=7m/(11.6m/s)=0.603s</span>
Answer:
If the wind is offshore (blowing away from the dock), one should carefully approach the dock at a 20 to 30 degree angle. A bow line is then passed ashore and secured. In boats having an outboard, or inboard/outboard engine, the engine is turned towards the dock and put in reverse. This invariably will bring the stern into the dock.
Answer:
17 - length of the fork
18 - number of turns
19 - material of the fork
Explanation:
Answer:
The acceleration of the train is 5 m/s².
Explanation:
Acceleration is the change in velocity over a given time interval.
Therefore, acceleration is given as:
Where, 
are initial and final velocities and 
is the time interval.
Here, 
This gives,
Therefore, the acceleration of the train is 5 m/s².
The correct answer is #4. They have the same number of protons but a different number of neutrons.
