As an object falls from rest, its gravitational potential energy is converted to kinetic energy. ... Once the object hit on the ground, height is zero, therefore no potential energy at ground level. ... If a mass of 4 kg is dropped from a height of 100 meters
Answer:
f = 106.3 N
Explanation:
The force applied on the sled must be equal to the static frictional force to move the sled:
Tension Force Horizontal Component = Static Frictional Force
where,
T = Tension = 120 N
θ = angle of rope = 37°
μ = coefficient of static friction = ?
m = mass of children plus sled = 55 kg
g = acceleration due to gravity = 9.81 m/s²
Therefore,
Now, the static friction acting on the mother will be:
<u>f = 106.3 N</u>
Answer:
6.67 meters per second
Explanation:
Velocity is defined as the distance covered divided by the time it took to cover that distance. In your case the car traveled 200 meters in 30 seconds therefore its velocity is:
This periodic fraction can be rounded to 6.67 m/s
Now, if they ask you what is the answer in meters per minute, you can give an integer value for your answer simply by using the equivalent of 30 seconds to minutes in the velocity formula:
Answer:
10-16= -4 so, 1.0x-4 is -4. So the answer is -4.
Explanation: