Answer:
<em>The boat takes 2.5 seconds to slow down to 5 m/s</em>
Explanation:
<u>Motion With Constant Acceleration</u>
It's a type of motion in which the velocity of an object changes uniformly in time. The equation that rules the change of velocities is:
![v_f=v_o+at\qquad\qquad [1]](https://tex.z-dn.net/?f=v_f%3Dv_o%2Bat%5Cqquad%5Cqquad%20%5B1%5D)
Where:
a = acceleration
vo = initial speed
vf = final speed
t = time
Using the equation [1] we can solve for a:
The acceleration produced by the friction of water is 
and the boat is initially traveling at v0=30 m/s. When the motor is shut off, the boat will start braking until it stops. We need to find the time it takes to ready the final speed of vf=5 m/s.
Let's solve the above equation for t:
t = 2.5 s
The boat takes 2.5 seconds to slow down to 5 m/s
Answer:
false
Explanation: all compounds are electrically neutral.
Answer:
low powered radio frequency (RF) energy
Answer: The potential energy associated with a mass attached to a spring depends on how much the spring is stretched or compressed. ... The gravitational force on the mass is −mg (“−” because the force points down). The force is the negative of the slope on the potential energy versus position graph.
Explanation:
:)
the answer is true acceleration is the change in distance over time.
hope this helps
