The force that every mass exerts on every other mass is called gravity. Gravity Gravity is what attracts a persons body towards the center of the Earth. The correct answer is A.
Answer:
Force applied by bull dozer is 3333.33 joules.
Explanation:
First, we resolve the northeast displacement into its north and east components. The angle from the positive x-axis of a northeast displacement is 45 degrees. Thus:
North = 8.46sin(45) = 5.98 m
East = 8.46cos(45) = 5.98 m
North displacement = 5.98 - 3.6 = 2.38 m
West displacement = 15.6 - 5.98 = 9.62
Magnitude = √(2.38² + 9.62²)
Magnitude = 9.91 m
Direction:
tan∅ = 2.38 / 9.62
∅ = 13.9° north from east
Ke= 1/2 mv ^ 2
15x 15 = 225
225 x 30 = 6750
6750/2 = 3375 J
Ke = 3375 J
Given that,
Acceleration, a = 9.71 m/s²
Force, F = 5050 N
mass, m = ?
Since, we know that
F=ma
m= F/a
m= 5050/9.71
m= 520.08 kg
The mass of hi car is 520.08 kilograms.
