Answer: 11760 N
Weight = Mass × Acceleration = Mass × Gravity
Mass = 1200kg
Gravity = 9.8 m/s^2 (the negative sign denotes direction)
Weight = 1200kg × 9.8 m/s^2 = 11760 kg×m/s^2 = 11760 Newtons
Answer:
900 m
Explanation:
Given that,
A hiker travels 300 m [N], turns around and hikes 550 m[S], and then finds out he has to hike back another 50.0 m [N].
We need to find the total distance travelled by the hiker.
Let north be positive and south be negative direction.
Distance = total path covered
D = 300 + 550 + 50
D = 900 m
So, the required distance is equal to 900 m.
Answer:
is applied to
Explanation:
An input force is push or pull that is applied to the machine and causes work to be done on it.
Input force for every machine should be lesser than the output force. The output force is the resulting force which produces work.
The force produced by any machine is a function of the input force and the design of the machine.
Any force applied to a machine is the input force.
Conservation of momentum is a fundamental law of physics which states that the momentum of a system is constant if there are no external forces acting on the system.
Answer:

Explanation:
Let assume that ball strikes a vertical wall in horizontal direction. The situation can be modelled by the appropriate use of the definition of Moment and Impulse Theorem, that is:


The average force acting on the ball during the collision is:

