Answer:
the density of gasoline is about 0.7 kg per latest a URL 50 litre of gasoline to your car and when feeling it what is the mass of the same amount of gasoline 2144 to 86 kg answer
Explanation:
It is given that,
Initial speed of the automobile, u = 65 km/hr =
Final speed of the automobile, v = 0
Deceleration of the automobile, 
We need to find the distance covered by the car as it comes to rest. It can be calculated using third equation of motion as :



So, the acceleration of the car is
. Hence, this is the required solution.
Answer:
<h2> 33N</h2>
Explanation:
Note: the unit for acceleration in m/s^2
Also, the unit of the mass in the problem is assumed to be in kg
We are going to use newtons second law of motion which expresses the weight in an elevator as
F=ma
Given data
Acceleration of the elevator a= 2.2m/s^2
mass m = 15kg
substituting the data in the expression for force is
F=2.2*15
F= 33N
The reading of the balance is 33N