The answer is Electric
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Answer:
F = 11 N
Explanation:
Given,
Mass of a block, m = 5 kg
Acceleration of the block, a = 2.2 m/s²
We need to find the force on the person's hand. Let it is F. We know that force is given by the product of mass and acceleration as follows :
F = ma
F = 5 kg × 2.2 m/s²
F = 11 N
So, the force on a person's hand is 11 N.
Answer:
C. 6.14 m
Explanation:
The maximum horizontal distance travelled by a projectile is given by:
where
v is the initial velocity
is the acceleration of gravity
is the angle of launch
From the equation, we see that the maximum range is achieved when the projectile is fired at .
The dart in the problem has an initial velocity of
v = 7.76 m/s
Substituting into the formula, we find the maximum horizontal distance: