Answer:
Acceleration =4.42m/s^2
Explanation:
As the mug is not sliding on the car roof ,there must be static friction between the car and the mug. The maximum limit of static friction that can act is given by:
Kmg
Where I is coefficient of static friction between car roof and mug
m = mass of mug
g= acceleration due to gravity
Acceleration of the car= Kmg
Acceleration = 1.1 × 0.41 × 9.8 =4.42m/s
Answer:
30 kilometers per hour.
Explanation:
we know this by dividing 60 by 2
Answer:
a) Acceleration =
b) Slow down acceleration = 0.625
c) Car travels 9.8 m
Explanation:
Acceleration = Change in velocity/Time
a) Change in velocity = 3.5-0 = 3.5 m/s
Time = 0.4 seconds
Acceleration =
b) Change in velocity = 0 - 3.5 = -3.5 m/s
Time = 5.6 seconds
Acceleration =
Slow down acceleration = 0.625
c) We have equation of motion, , where u is the initial velocity, u is the final velocity, s is the displacement and a is the acceleration.
Here v = 0 m/s, u = 3.5 m/s, a = -0.625
Substituting
So, car travels 9.8 m
Answer:
C, 4.5 billion years ago, i think
Explanation:
Answer:
The current at time t = 4.00 s is 0.766 A.
Explanation:
Given that,
The quantity of charge through a conductor is modeled as :
We need to find the current (in A) at time t = 4.00 s. We know that the rate of change of electric charge is called electric current. It is given by :
At t = 4 s
So, the current at time t = 4.00 s is 0.766 A. Hence, this is the required solution.