Question

010 10.0 points A ball of mass 0.194 kg is dropped from a height 2.46 m above the ground. The acceleration of gravity is 9.8 $m/s^2$. Neglecting air resistance, determine the speed of the ball when it is at a height 0.627 m above the ground. Answer in units of m/s. 011 10.0 points In an arcade game a 0.074 kg disk is shot across a frictionless horizontal surface by com- pressing it against a spring and releasing it. If the spring has a spring constant of 209 N/m and is compressed from its equi- librium position by 6 cm, find the speed with which the disk slides across the surface. Answer in units of m/s. 012 (part 1 of 3) 10.0 points A(n) 15.4 kg rock is on the edge of a(n) 194 m cliff. The acceleration of gravity is 9.8 $m/s^2$. What potential energy does the rock pos- sess relative to the base of the cliff? Answer in units of J. 013 (part 2 of 3) 10.0 points The rock falls from the cliff. What is its ki- etic energy just before it strikes the ground? Answer in units of J. 014 (part 3 of 3) 10.0 points What speed does the rock have as it strikes the ground? Answer in units of m/s.

          010 10.0 points
A ball of mass 0.194 kg is dropped from a
height 2.46 m above the ground.
The acceleration of gravity is 9.8 $m/s^2$.
Neglecting air resistance, determine the
speed of the ball when it is at a height 0.627 m
above the ground.
Answer in units of m/s.
011 10.0 points
In an arcade game a 0.074 kg disk is shot
across a frictionless horizontal surface by com-
pressing it against a spring and releasing it.
If the spring has a spring constant of
209 N/m and is compressed from its equi-
librium position by 6 cm, find the speed with
which the disk slides across the surface.
Answer in units of m/s.
012 (part 1 of 3) 10.0 points
A(n) 15.4 kg rock is on the edge of a(n) 194 m
cliff.
The acceleration of gravity is 9.8 $m/s^2$.
What potential energy does the rock pos-
sess relative to the base of the cliff?
Answer in units of J.
013 (part 2 of 3) 10.0 points
The rock falls from the cliff. What is its ki-
etic energy just before it strikes the ground?
Answer in units of J.
014 (part 3 of 3) 10.0 points
What speed does the rock have as it strikes
the ground?
Answer in units of m/s.

010 10.0 points
A ball of mass 0.194 kg is dropped from a
height 2.46 m above the ground.
The acceleration of gravity is 9.8 m/s^2.
Neglecting air resistance, determine the
speed of the ball when it is at a height 0.627 m
above the ground.
Answer in units of m/s.
011 10.0 points
In an arcade game a 0.074 kg disk is shot
across a frictionless horizontal surface by com-
pressing it against a spring and releasing it.
If the spring has a spring constant of
209 N/m and is compressed from its equi-
librium position by 6 cm, find the speed with
which the disk slides across the surface.
Answer in units of m/s.
012 (part 1 of 3) 10.0 points
A(n) 15.4 kg rock is on the edge of a(n) 194 m
cliff.
The acceleration of gravity is 9.8 m/s^2.
What potential energy does the rock pos-
sess relative to the base of the cliff?
Answer in units of J.
013 (part 2 of 3) 10.0 points
The rock falls from the cliff. What is its ki-
etic energy just before it strikes the ground?
Answer in units of J.
014 (part 3 of 3) 10.0 points
What speed does the rock have as it strikes
the ground?
Answer in units of m/s.

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