Answer:
1.67 m/s
Explanation:
Since this is an inelastic collision (the block and the arrow stick together after the collision), we can solve the problem by using the law of conservation of momentum:
where
is the mass of the arrow
is the initial speed of the arrow
is the mass of the block
is the initial speed of the block
is the final speed of the arrow+block
Substituting and re-arranging the equation, we find:
Answer:
Josh is the strongest
The net force is 5N towards right
Answer:
the value of the boltzman constant 8.61 73303 into 10 ratio by - 5 EV upon knev
Answer:
Explanation:
As we know that the mass of the fleas is given as
now the speed of the fleas is given as
now just before it will jump let say it has some energy E
so as per energy conservation law we can say that this total initial energy will convert into its kinetic energy just after the jump
so the initial total energy is given as