A 1530 kg car moving south at 12.1 m/s collides with a 2560 kg car moving north. The cars stick together and move as a unit afte
1 answer:
Answer:
16 m/s north
Explanation:
According to the law of momentum conservation, total momentum before and after must be the same
Total momentum after the collision as both cars stick together as 1 unit traveling at speed of 5.48m/s to the north
(m + M)V = (1530 + 2560)*5.48 = 22413 kgm/s
So the total momentum before must also be 22413, which is made of
north
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A gravitational field is the field generated by a massive body, that extends into the entire space. Every object with mass m experiences a force F when immersed in a gravitational field. The intensity of the force is equal to
where
is the gravitational constant, M is the mass of the source of the field (e.g. the mass of a planet), and r is the distance between the object and the source of the field. The force is always attractive.
A possible way to measure the intensity of a gravitational field is by measuring the acceleration a of the object immersed in this field. In fact, for Newton's second law we have:
but since
we can write
Therefore, by measuring the acceleration of the object, we also measure the intensity of the field.
where
A possible way to measure the intensity of a gravitational field is by measuring the acceleration a of the object immersed in this field. In fact, for Newton's second law we have:
but since
we can write
Therefore, by measuring the acceleration of the object, we also measure the intensity of the field.
Answer:
b) 1500N
c) to the right
Explanation:
Resultant force= 2000 -500= 1500N
Resultant force is a combination of 2 or more forces acting on an object.
