Answer:
False
Explanation:
False
If brakes fail then we should not run against any object or wall to slow down the speed instead we should use friction forces slow down the car and shift gear to neutral to cease any acceleration.
By driving zig-zag motion friction force on the tires may stop the car after some distance.
Do not try to shut off the engine as it will lock the steering mechanism any prove fatal.
Synthesis and decomposition reactions are b. Synthesis and decomposition reactions are opposites of each other. Synthesis reactions are in the form A + B → AB, while decomposition reactions are in the form AB → A + B.
Synthesis reactions are reactions in which elements or compounds combine to form a larger compound. They are of the form A + B → AB.
Example: Na(s) + Cl (g)→ NaCl(s)
Decomposition reactions are reactions in which a larger compound breaks up into smaller compounds or elements. They are of the form AB → A + B.
Example: CaCO₃(s) → CaO (s) + CO₂ (g)
Synthesis and decomposition reactions are opposite of each other since synthesis reactions, new substances are formed while in decomposition reactions the compound is broken down into into smaller constituents.
So, Synthesis and decomposition reactions are b. Synthesis and decomposition reactions are opposites of each other. Synthesis reactions are in the form A + B → AB, while decomposition reactions are in the form AB → A + B.
Learn more about reactions here:
brainly.com/question/282113
Answer:
minimum speed is 15.35 m/s
frictional coefficient is 0.26
Explanation:
given data
radius = 84 m
angle = 16°
speed = 16 km/h = 4.43 m/s
to find out
minimum speed and minimum coefficient
solution
we will apply here formula for velocity that is
velocity² = radius × g × tanθ
v² = 84 × 9.8 × tan16
v² = 236.04
v = 15.35 m/s
and
we find first friction force here
friction force 1 = m v² /r
friction force 1 = m (15.35)² / 84 = 2.80 m
and
friction force 2 = m v² /r
friction force 2 = m (4.43)² / 84 = 0.245 m
so total friction force = f1 - f2
total friction force = 2.80 - 0.245 = 2.55 m
so frictional coefficient = friction force /g
frictional coefficient = 2.55 / 9.8
so frictional coefficient is 0.26
D is the answer trust me have faith it’s for the glory of humanity
Answer:
from
force =mass x acceleration
mass = force/acceleration
m = f/a
m = 7.5/15
m=0.5kg