Answer:
(A) No
(B) Speed decreases
Explanation:
(A) since there is nothing propelling the boat and the friction between the ice and the boat and also air resistance is negligible the net force of the system in the horizontal direction is zero and hence there is no change in the horizontal momentum of the boat.
(B) Since the person had not velocity in the horizontal direction before landing on the boat but now has one after landing on the boat, the speed of the boat will decrease because the momentum has to be conserved (remember there is no change in it).
I agree the best choice is A............
Answer:
True
Explanation:
In Massachusetts it's illegal to drive while texting or on your phone.
Answer:
Explanation:
Given:
Let mass of the particle B be, 
then the mass of particle A, 
Energy stored in the compressed spring, 
Now when the compression of the particles with the spring is released, the spring potential energy must get converted into the kinetic energy of the particles and their momentum must be conserved.
Kinetic energy:
.............................(1)
<u>Using the conservation of linear momentum:</u>
.............................(2)
Put the value of 
from eq. (2) into eq. (1)
...........................(3)
<u>Now the kinetic energy of particle B:</u>
Put the value of 
form eq. (3) into eq. (1):
<u>Now the kinetic energy of particle A:</u>
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