Answer:
I'm pretty sure its A and C
Explanation:
makes sense
Answer:
1) 1.08 m/s^2
Explanation:
Acceleration is equal to the change in velocity divided by the time taken:
where
v is the final velocity
u is the initial velocity
is the time taken
In this problem, we have:
- initial velocity: u = 0 (you start from rest)
- final velocity: v = 5.4 m/s
- time taken:
Therefore, the acceleration is
2) -0.54 m/s^2
We can calculate the acceleration to slow down using the same formula as before, but this time the data are as follows:
- initial velocity : u = 5.4 m/s
- final velocity : v = 0 (you come to a stop)
- time taken :
using the same formula, we find
And the negative sign means it is a deceleration.
Answer:
240000 mph² or miles/hour²
Explanation:
<em>Use the formula</em>
<h3>acceleration = change in velocity ÷ time</h3>
change in velocity = 300 mph - 0 mph (final velocity - intial velocity)
time = 0.00125 hours
<em>Substitute the values into the formula:</em>
acceleration = 300 ÷ 0.00125 = 240000 mph²