If a melon has a a mass of 1 kg, how much does the melon weigh?
2 answers:
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Answer:
Explanation:
Let's use projectile motion equations. First of all we need to find the travel time. So we are going to use the next equation:
(1)
Where:
In this case:
Because the dog jumps horizontally
Let's asume the gravity constant as:
Because when the dog reach the base the height is 0
Now let's replace the data in (1)
Isolating t:
Finally let's find the horizontal displacement using this equation:
Replacing the data:
However here coefficient of friction is not given so unable to calculate.
You can calculate it by below formula.
The formula given by
Or
u is coefficient of friction
N is normal reaction.
Here..
box doesn't move means the force if limiting friction is greater than applied force.