Answer:
38.87 m/s
Explanation:
Given that the ball is dropped from a height = 77 m
u = 0 m/s
s = 77 m
a = g = 9.81 m/s²
Applying the expression as:
Applying values as:
<u>The speed with which the ball hit the ground = 38.87 m/s</u>
At t = 0 a truck starts from rest at x = 0 and speeds up in the positive x-direction on..., the time the truck passes the car and the coordinate the truck passes the car is mathematically given as
<h3>What time does the truck pass the car and coordinate does the truck pass the car?</h3>
Generally, the equation for Distance traveled is mathematically given as
By Truck
By Car
In conclusion, when the conditions the truck passes the car
Therefore
Therefore
differentiation of T
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Answer:
Part a)
Part b)
Explanation:
Mass of the disc is given as
m = 2.00 kg
radius of the disc is given as
r = 7 cm
so moment of inertia of the disc is given as
Now given that torque on the disc is
so here the angular acceleration is given as
Part a)
if disc start from rest and then achieve final speed as 1200 rpm then
so final speed is
now the time taken to reach this speed is given as
Part b)
Number of revolution in the same time is given as
I think it would be B
D is also an option
Answer:
The high pressure areas in a longitudinal wave are called compressions.