The time it takes for an object to reach a certain level given the distance and the initial velocity can be calculated through the equation,
d = V₀t + 0.5gt²
Where d is the distance, V₀ is the initial velocity, g is the acceleration due to gravity and t is time. Substituting the known values from the given above,
25 = (-7.5)(t) + 0.5(9.8 m/s²)(t²)
The value of t from the equation 3.15s. Hence, it will take the object 3.15 seconds to reach the ground.
Answer:
Explanation:
Given data
Mass m=2.46×10⁻²⁶kg
Voltage V=270 V
Magnetic field B=0.5353 T
To find
Radius r
Solution
By using conservation of energy to find speed of charge
Substitute the given values
So the radius can be find as:
Substitute the values
Answer:
x = 16 [m]
Explanation:
This problem can be solved using the following equation of kinematics.
where:
Vf = final velocity [m/s]
Vo = initial velocity = 5 [m/s]
a = acceleration = 3 [m/s²]
t = time = 2 [s]
Now we can find the displacement using the following equation of kinematics.
Answer:
The Answer is True! I took the test!
Explanation: