Question 2 of 5 Which two statements are true for both compounds and mixtures? A. They can be separated into two or more element
1 answer:
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The expression for the frictional force between the sled and the ground is:
where
is the coefficient of friction, m is the mass of the object and 
is the gravitational acceleration.
The friction force in our problem is F=80.85 N. The mass of the object is m=15 kg. Re-arranging the formula, we can find the value of k:
where
The friction force in our problem is F=80.85 N. The mass of the object is m=15 kg. Re-arranging the formula, we can find the value of k:
Answer:
The direction and magnitude of velocity is 38.65° and 12.005 m/s
Explanation:
Given that,
Mass of car = 1500 kg
Speed of car = 25.0 m/s
Mass of van = 2500 kg
Speed of van =20.0 m/s
We need to calculate the velocity
Using conservation of energy
The magnitude of velocity
We need to calculate the direction
Hence, The direction and magnitude of velocity is 38.65° and 12.005 m/s.