Answer:
Explanation:
Given
mas of block
speed of block
spring constant
As the mass collides with the spring its kinetic energy is converted to the Elastic Potential energy of the spring
Answer:
a) I =0.0045 Ns
b) I= 005292 Ns
c) Push
Explanation:
1) Data given and useful definition
is the average force
represent the duration steps
Impulse is defined as: "The change of momentum of an object when the object is acted upon by a force for an interval of time"
2) Part a
We can calculate the impulse during the slap with this formula:
And replacing we got:
but on this case is moving on positive direction so then I=0.0045Ns
3) Part b
The impulse for this case would be given by:
Since the downward impulse on the lizard due to the gravitational force that represent that the average force would be the graviational force, and replacing we have:
And replacing the values we got:
4) Part c
Based on the values obtained for parts a) and b) we see that the impulse for the slapping is very low to surpass the impulse due to the gravitational force. So on this case needs to be push to provides the primary support for the lizard.
Answer:
By throwing wrenches and screwdrivers away the side of spaceship he might be able to get back.
Explanation:
<em>Theory</em>
<u>The law of conservation of linear momentum</u>
The sum of linear momentum of a closed system under no external unbalance force remains the same.
Here consider the astronaut and the wrenches and screwdrivers as a system.
System in the empty space so no external unbalance force exerted on the astronaut. As the linear momentum is conserved when he throw wrenches and screwdrivers away form the space ship he will gain an equal momentum in the opposite direction. So he gains a certain velocity which he can use to drift towards the spaceship.
Answer:
4 m/s
Explanation:
Momentum is conserved.
m₁ v₁ + m₂ v₂ = (m₁ + m₂) v
(50)(5) + (20)(1.5) = (50 + 20) v
v = 4
The final velocity is 4 m/s.
Answer:
The added mass will mean a longer period of oscillation.
Explanation:
The period of oscillation here is given by the formula;
T = 2π√(m/k)
Where m is mass and k is spring constant
From the equation of oscillation period above, it's obvious that when we increase the mass, the oscillation period will also increase.
Thus, the added mass will mean a longer period of oscillation.