(a) 44.7 m/s
We can find the final velocity of the car by using the SUVAT equation:
where
v is the final velocity
u = 0 is the initial velocity (the car starts from rest)
is the acceleration
is the displacement
Solving for v,
(b) 80 s
We can find the time it takes for the car to cover 1.6 km by using the following SUVAT equation:
where in this case we have
d = 1.6 km = 1600 m is the displacement
is the acceleration
u = 0
t is the time
Solving for t, we find:
<span>1) a 2) D hope it helps :)</span>
Answer:
13 sec <===== see assumption below
Explanation:
If the cyclist is ACCELERATING at 1.2 m/s^2 ....it will not stop.
<u>If the acceleration is </u><u>-</u><u> 1.2 m/s^2 , then:</u>
vf = vo + a t
vf = final velocity = 0 vo = original v = 6.5m/s a = - 1.2 m/s^2
0 = 6.5 - 1/2 t then t = 13 sec
Two forces F<span>1 and </span>F<span>2 act on the screw eye. The resultant force </span>FR<span> has a magnitude of 125 lb and the coordinate direction angles shown in (Figure 1) . Determine the magnitude of </span>F<span>2. Determine the coordinate direction angle </span>α<span>2 of </span>F<span>2. Determine the coordinate direction angle </span>β<span>2 of </span>F<span>2. Determine the coordinate direction angle </span>γ<span>2 of </span>F<span>2.</span>