naturally occurring radioactive elements have been around since the Earth's formation
causing the block to accelerate uniformly at
1.4 meters per second2 to the right. After the
skater stops pushing the block, it slides onto a
region of ice that is covered with a thin layer
of sand. The coefficient of kinetic friction
between the block and the sand-covered ice is
0.28.
On the diagram in your answer booklet, starting
at point A, draw a vector to represent the force
applied to the block by the skater. Begin the
vector at point A and use a scale of
1.0 centimeter = 5.0 newtons.
The resultant or the net force act on the object cannot be 0. it must have a value but the direction is opposite from the object move direction.
if the object move to the left, so the net force or the resultant is doing to the right
Any motion in a curved path represents accelerated motion, and requires a force directed toward the center of curvature of the path. This force is called the centripetal force which means "center seeking" force. The force has the magnitude
F = mv^2 / r
Where f is the centripetal force
M is the mass
V is the velocity
R is the radius
19 N = m ( 0.54 m/s)^2 / 0.36 m
Solving for m
M = 23.5 kg
Answer:
23
Explanation:
b. How far did you travel vertically during the 2 seconds?
c. How fast were you moving horizontally when you hit the water?
d. How fast were you moving vertically when you hit the water?