What do you mean by that?
Answer:
Momentum, p = 23250 kg m/s
Explanation:
Given that
Mass of a car, m = 1550 kg
Speed pf car, v = 15 m/s
We need to find the momentum of the car. The formula for the momentum of an object is given by :
p = mv
Substituting all the values in the above formula
p = 1550 kg × 15 m/s
p = 23250 kg m/s
So, the momentum of the car is 23250 kg m/s.
Answer:
Explanation:
Given
Energy expedition
Height to which bag is raised
time required
Energy Require to lift the bag
Work done to Raise the bag =Energy expend
Work done
Answer:
The quantity is either a vector or a scalar. These two categories can be distinguished from one another by their distinct definitions: Scalars are quantities that are fully described by a magnitude (or numerical value) alone. Vectors are quantities that are fully described by both a magnitude and a direction.
Explanation:
Answer:
C) 469 N
Explanation:
The reading on the scale corresponds to the normal reaction exerted by the scale on the person, R.
There are two forces acting on the person:
- Its weight (acting downward), equal to , where m = 60 kg is the mass of the person and g = 9.81 m/s^2 is the acceleration due to gravity
- The normal reaction of the scale, R, acting upward
According to Newton's second law, the resultant of these two forces must be equal to the product between mass and acceleration:
where we know that since the elevator is traveling downward at 2.00 m/s^2. Solving the equation for R, we find