if you have a 1.5 L container of tea and the label state that the container contains 1.2 g of sugar grams of sugar what's the co
1 answer:
You might be interested in
–0.05 m/s
Explanation:
The total momentum of the system player+basketball must be conserved before and after the ball has been thrown.
Before throwing the ball, the total momentum of the system is zero, because can assume both the player and the basketball being at rest:
The total momentum after the ball has been thrown is instead the sum of the momenta of the the player and of the basketball:
where
is the player's mass
is the player's velocity
is the ball's mass
is the ball's velocity
For the conservation of momentum, we have
And the negative sign means that the player travels in the opposite direction to the ball.
Answer: 2.63 m/s
Explanation:
The question in english is written below:
During an attemp of croquet game, a 0.52 kg ball at rest on the grass is hit by a mallet with an average force of 190 N, if the mallet is in contact with the ball for , Whay is the speed of the ball just after being hit?
According to Newton's second law of motion, the force exerted on an object is directly proportional to its mass
and acceleration
:
(1)
On the other hand, acceleration is defined as the variation of velocity in time
:
(2)
Substituting (2) in (1):
(3)
Where:
Isolating the velocity from (3):
(4)
Finally: