Answer:
16m
Explanation:
Given parameters:
Time = 4s
Initial velocity = 0m/s
Acceleration = 2m/s²
Unknown:
How far will the body move = ?
Solution:
To solve this problem, we use the expression below:
s = ut + at²
s is the distance
u is the initial velocity
t is the time
a is the acceleration
s = (0 x 4) + ( x 2 x 4²) = 16m
Answer:
The greater the luminosity of a star, the longer its period of oscillation.
Answer:
2315.8 m/s
Explanation:
For the charged particle to pass through this field undeflected, the electric force and the magnetic force acting on it must be equal
Electric force = Magnetic force
Electric force = Eq
Magnetic force = qvB
qvB = Eq
v = (E/B)
E = 440 N/C, B = 0.19 T
v = (440/0.19)
v = 2315.8 m/s
A tornado is a natural force It is a very strong wind that causes thing to damage
Explanation:
Using kinematics,
s = ut + 0.5at².
We have s = 35.0m, t = 0.50s, a = 2.80m/s².
Substitute in the variables, we have u = 69.3m/s.
This u is only the initial velocity at t1. To find the velocity at t0, we apply a different kinematics equation with different values:
We have t = 5.00s, a = 2.80m/s², v = 69.3m/s.
Using kinematics,
v = u + at.
Substitute in the variables, we have u = 55.3m/s.
Hence the car's initial velocity is 55.3m/s.