(sorry something wrong w my keyboard so write each line for the explnation!)
63.0 m
Explanation:
Acceleration of car
=
v
−
u
t
=
0 ms
−
1
−
21.0 ms
−
1
6.00 s
=
−
3.50 ms
−
2
S
=
v
2
−
u
2
2a
S
=
(
0 ms
−
1
)
2
−
(
21.0 ms
−
1
)
2
2
×
−
3.50 ms
−
2
S
=
63.0
m
A method of procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses.
Without knowing anything about their magnitudes or directions, the only thing you can always say about thier combination is that it's the "net force" on the object.
Avg sped = total distance/ total time = 1350 mi/ 5 hrs= 270mph (i dont know if ur teacher wants you to convert this to m/s)
300miles are traveled in 1 hr. So, 300 *2hrs = 600 miles south
750/250= 3hrs north
Total distance = 600 miles + 750 miles= 1350 miles
Total time is = 3hrs + 2hrs= 5hrs
