All waves have wavelength, frequency, rest point, and speed. True or False?
2 answers:
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Answer:
k = 773.64 N/m
Explanation:
Given:
mass of the pellet, m = 3.56 x 10² kg
Compression in spring, x = 6.61 × 10⁻² m
Height of rise of the pellet, h = 4.83 m
Now, let k be the spring constant
From the concept of conservation of energy, we get
gravitation potential energy acquired by the pellet will be from the energy provided by the spring
thus,
where, g is the acceleration due to the gravity
on substituting the values, we get
or
1.685 = .002178 × k
k = 773.64 N/m
Consider the motion of the cannonball along the vertical direction or y-direction.
= initial velocity along the Y-direction
= acceleration due to gravity
t = time of travel
Y = vertical displacement
Using the kinematics equation
Y = t + (0.5)
t²
since the ball has been launched horizontally , = 0
Y = (0) t + (0.5) t²
t =
hence the time of travel is independent of the initial velocity. hence the time of travel remain same.
Consider the motion along the horizontal direction
= initial velocity along the X-direction
= acceleration along the horizontal direction = 0
t = time of travel
X = horizontal displacement
Using the kinematics equation
X = t + (0.5)
t²
since the ball has been launched horizontally , = 0
X = t + (0.5) (0) t²
X = t
hence the horizontal distance directly depends on the velocity. so the horizontal distance will become double.
C) The time won't change, but horizontal distance will double.