Explanation:
a. the total time taken for the journey is 50sec.
b. u=0, v=10m/sec, t=20sec.
a=(v-u)/t = (10-0)/20 = 10/20 = 0.5 m/s².
hope this helps you to solve the problem.
Answer:
a)r' = 4 r
b)
Explanation:
Given that car is moving with uniform speed.
At the verge of sliding
Friction force = Force due to circular motion
So we can say that
-----1
Where is the coefficient of friction
r is the radius of circular path
V is the velocity of car
a)
if the car speed become double
It means that new speed of car =2V
lets tale new radius of circular path is r'
---------2
From equation 12 and 2 we cay that
r' = 4 r
It means that we have to increase radius 4 times to avoid sliding
b)
In the above expression there is no any terms of mass ,it means that sliding speed does not depends on the weight of car.
So the sliding speed will remain same.
Answer:
the answer is option a(a) 48h in advance.
Explanation:
The second stage warning known as "CYCLONE ALERT"is assused at least 48 hours.in advanced of the expected commencement of adverse weather over the coastal areas.....the third stage warning known as "CYCLONE WARNING" issued at least 24 hours in advance of the expected commencement of adverse weather over the coastal areas.please mark me brainliest
Answer:
the answer is c
Explanation:
by transferring heat from the tropics to the colder climates
Answer:
B)a tool to drop temperatures, mercury, an electric current, and a tool to measure resistance