We use the following formula to determine our acceleration:
We normally use letters in this formula, which gives us:
Filling in this formula gives us:
Δv (change of velocity) = 12 - 4 = 8 m/s
t = 1s
So our answer: the acceleration is
Answer:
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Explanation:
12121212 i am jj and i am 8
To determine the maximum height for the projectile, we can use the timeless kinematics equation
and plug in what we know. For
, we know it is zero because at the highest location of flight, there is no vertical velocity. For
, we know it is
since the vertical component is the sine of the velocity. We need to solve for
, so it is left as-is. Since the only acceleration is
, we can substitute -9.81 into it. Solving for the equation yields a solution of 17.55 m for
.
The answer to your question is B.
Answer:
Like charges repel each other; unlike charges attract. Thus, two negative charges repel one another, while a positive charge attracts a negative charge. The attraction or repulsion acts along the line between the two charges. The size of the force varies inversely as the square of the distance between the two charges.
