Answer:
7.54 m/s²
Explanation:
uₓ(t) = (0.980 m/s³) t²
Acceleration is the derivative of velocity with respect to time.
aₓ(t) = 2 (0.980 m/s³) t
aₓ(t) = (1.96 m/s³) t
When uₓ = 14.5 m/s, the time is:
14.5 m/s = (0.980 m/s³) t²
t = 3.85 s
Plugging into acceleration equation:
aₓ = (1.96 m/s³) (3.85 s)
aₓ = 7.54 m/s²
Answer:
11.7 im pretty sure. i did the work so it should be correct
<span>The nickel has a mass of approximately 0.005kg</span>
When someone is struct by lightning, the electricity passes through the body, into the earth. Here, our body acts as a lightning conductor to complete the earthing process.
5-a). Acceleration is a vector defined as the rate of change of velocity.
Its magnitude has units of [length/time²]. The SI unit is meter/second².
Its direction is the direction in which velocity is increasing.
5-b). The graph says that the object's speed is not changing.
When we look at any time, from zero to almost 50 minutes, the
object's speed is the same . . . 60 m/s . This will make it easy.
There are 60 seconds in a minute, so 30 minutes = 1,800 seconds.
In every one of those seconds, the object covered 60 meters.
It travelled a total of (60 m/s)·(1,800 s) = 108,000 meters (108 km) .
