Explanation:
Given that,
A person walks 9.0 km directly east and then turns left and heads directly north for 12.0 km.
We need to find his displacement from the starting position.
We know that,
Displacement = shortest path covered
For direction,
Hence, this is the required solution.
Answer:
For the car to move with constant velocity the additional force required is
Explanation:
From the question we are told that
The net force of the car is
Generally the total force acting on the car is the net force plus the force due to gravity acting in direction of the car (Let denote it as )
So the total force acting on the car is mathematically represented as
Here this F representing the total force can be mathematically represented as
Now for constant velocity to be attained, the acceleration of the car will be zero
So at constant velocity
=>
So
=>
=>