Answer:
Net force, F = 205.59 N
Explanation:
Given that,
Mass of a bobsled, m = 89 kg
Initial speed of the bobsled, u = 0
Distance travelled, d = 33.8 m
Final speed of the bobsled, v = 12.5 m/s
To find,
The magnitude of the net force
Solution,
Let a is the acceleration of the bobsled. Using the third equation of kinematics as :
Let F is the magnitude of net force acting on the bobsled. It can be calculated as :
F = 205.59 N
Therefore, the magnitude of the net force acting on the bobsled is 205.59 N.
Answer:
2.75 × e10
put the decimal in front of the first real number. put e to however many spaces from the original
Answer:
600 KPa.
Explanation:
From the question given above, the following data were obtained:
Initial volume (V1) = 0.075 m³
Final volume (V2) = 0.45 m³
Final pressure (P2) = 100 KPa
Initial pressure (P1) =?
Temperature = constant
The initial pressure can be obtained by using the Boyle's law equation as shown below:
P1V1 = P2V2
P1 × 0.075 = 100 × 0.45
P1 × 0.075 = 45
Divide both side by 0.075
P1 = 45 / 0.075
P1 = 600 KPa.
Thus, the initial pressure in the balloon is 600 KPa.