Which of the following calculations is equal to 1?
1 answer:
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Answer:
The value is
Explanation:
From the question we are told that
The speed of each train is
The speed of the bird is
The distance between the trains is
Generally the time taken before the collision occurs is mathematically represented as
=>
=>
The total distance covered by the bird is mathematically represented as
=>
=>
Answer:
The change in momentum (in kg*m/s) = 42
Explanation:
The change in momentum is equal to
Final Momentum - Initial Momentum
As we know
Momentum is equal to the product of mass and velocity
where m is the mass of the body and v is the speed
Thus, change in momentum
here m1 = m2 = 6 Kg
Substituting the given values in above equation we get -
kg m/s
Answer:
≈39.2354 [m]
Explanation:
1) coordinates of the rock 1;
2) coordinates of the rock 2; note, ↑ means, the rock moves up, ↓ means the rock moves down;
3) the required distance.
For more info see the attachment.
