Starting with the equation for newtons second law of motion: 
Calculate the average velocity of a dancer who moves 5 m toward the left of the stage over the course of 15 s. ** Velocity = dis
1 answer:
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Use the law of conservation of momentum to solve this problem. We have a system of two bodies (bullet and block). Initially, only the bullet has a non-zero momentum. After the collision, both have some momentum and we know the part for the bullet, so it is simple to isolate the part for the block. Call v_t0 the initial bullet speed, v_t1 new bullet speed, v_k speed of block. (similarly for masses):
The block will move with a speed of 2 m/s in the direction of the bullet.
The mass of the cart is 0.167 kg
Explanation:
We can solve the problem by using Newton's second law, which states that the net force applied to an object is equal to the product between its mass and its acceleration:
where
F is the net force acting on an object
m is its mass
a is its acceleration
For the cart in this problem, we have
F = 0.5 N is the net force applied
is the acceleration
Substituting, we find the mass:
Learn more about Newton's second law:
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