A car moving with velocity of 40km/h came to rest after an hour, then the magnitude of its acceleration is
(a) 40km/h?
(b) 20 km/h?
(c) 100m/s2
(d) zero
Answers
Answered by
1
Answer:
multiply 40 to 18/5
Explanation:
Carbon is a chemical element with the symbol C and atomic number 6. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. It belongs to group 14 of the periodic table. Carbon makes up only about 0.025 percent of Earth's crust
Answered by
0
Answer:
-40 km/h²
Explanation:
initial velocity = 40 km/h
final velocity = 0 (car came to rest)
time = 1 hour
acceleration = v-u / t
= 0-40 / 1
= -40 / 1
= -40 km/h²
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