Answer:
t = 26.8 s
Explanation:
Here, we can use the second equation of motion to calculate the required time:
where,
s = distance = 1800 m
vi = initial speed = 0 m/s
t = time needed = ?
a = acceleration = 5 m/s²
Therefore,
<u>t = 26.8 s</u>
A net force is the sum of all forces acting on an object. A net force is capable of accelerating a mass. For instance, if the wheels of a car push it forward with 5 Newtons<span> and drag is </span>3 Newtons<span> , the net force is </span>2 Newtons<span> , forward.</span>
Use Newton's second law F = mass * acceleration
In your problem F = 500, and we know gravity is working on it so use a = 9.81
Substitute into the equation
500 = m * 9.81
m = 50.97 kg
Higher frequency for lower wavelength...
.... If speed is fixed. ie no medium change.
Answer: its 19 m/sec
Explanation: gotta multiply the speed by 2 so 9.8 X 2 = 19