I would say it’s “B” for the reason that the student did not experiment with a short ramp and large ball as well as a large ramp and a short ball. They have to do those experiments as well before drawing their conclusion.
Question:
At a sports event, the car starts from rest. in 5.0 s its acceleration is 5.0 m/s2. Calculate the distance travelled by car.
Answer:
62.5 metres
Explanation:
Given
-- Initial Velocity
--- acceleration
-- time
Required
Calculate the distance
This question will be solved using the following equation of motion
<em>Where S represents the distance</em>
<em></em>
Substitute values for u, t and a
<em>Hence, the distance travelled is 62.5m</em>
Thank you for posting your question here at brainly. But your question seems incomplete. I will assume you based the situation below:
<span>An electrons moves at 2.0x10^6 m/s through a region in which there is a magnetic field of unspecified direction and magnitude 7.4x10^-2 T.
The </span> largest possible magnitude of the acceleration of the electron due to the magnetic field is <span>= 2.6 × 10 ¹⁶ m / s ²</span>
It would <span>keep rolling without slowing down if no friction acted upon it.
</span>
Answer:
358 N
Explanation:
where F is the force, is the coefficient of static friction between the floor and the refrigerator and N is the weight
Normally, N=mg hence where m is the mass of object and g is the acceleration due to gravity
In this case, N is given as 895 N and the coefficient of static friction between the floor and the refrigerator is 0.400 hence substituting them in the formula we obtain