Answer:
in everyday use and in kinematic the speed of an object is the magnitude of the change of its position it is thus a scalar quantity
Answer:
Velocity: +ve, Acceleration: -ve
Explanation:
Here I've considered downward direction as positive direction.
Answer:
Gravitational force -an attractive force that exists between all objects with mass; an object with mass attracts another object with mass; the magnitude of the force is directly proportional to the masses of the two objects and inversely proportional to the square of the distance between the two objects.
pls give brainliest for the answer
If a person want to move a <span>heavy box across the room, he must apply a force that is greater than starting frictional force acted on the heavy box in order to get the box in motion. the frictional force is equal to coefficient of friction times the normal force, and normal force is approximately the weight of the object. so the force that must be applied must be greater than the wieght of the object.</span>
From the calculation, we can see that the force that moves the box forward is 5.7 N.
<h3>What is frictional force?</h3>
The term frictional force refers to the force that opposes motion. Given that;
ma = ukmgcosθ + F
Let F be the forward force.
Hence;
F = ma - ukmgcosθ
F = 4 * 3 - (0.32 * 4.00 * 9.8 * sin 30)
F = 5.7 N
Learn more about frictional force:brainly.com/question/14662717
#SPJ1
