Answer:
Mass = 386 kg
Explanation:
<u><em>Density = Mass / Volume</em></u>
Mass = Density × Volume
Where D = 19300 kg/m³ , V = 0.02 m³
<em>Putting the given in the above formula</em>
Mass = 19300 × 0.02
Mass = 386 kg
Answer:
Solution is given in the attachments,below.
Answer:
Rod 1 has greater initial angular acceleration; The initial angular acceleration for rod 1 is greater than for rod 2.
Explanation:
For the rod 1 the angular acceleration is
Similarly, for rod 2

Now, the moment of inertia for rod 1 is
,
and the torque acting on it is (about the center of mass)

therefore, the angular acceleration of rod 1 is


Now, for rod 2 the moment of inertia is


and the torque acting is (about the center of mass)


therefore, the angular acceleration
is


We see here that

therefore

In other words , the initial angular acceleration for rod 1 is greater than for rod 2.
Answer:
x = 108.5 m y = 45.37 m,
Explanation:
This is a projectile launching exercise, the horizontal distance it reaches is called the range and can be found by the expression
x = v₀ₓ t
the initial hairiness is
v₀ₓ = v₀ cos θ
x = v₀ cos θ t
let's calculate
x = 53 cos 35 2.50
x = 108.5 m
the height of the projectile can be calculated with
y =v₀ t - ½ g t²
y = vo sin tea t - ½ g t²
y = 53 sin 35 2.50 - ½ 9.8 2.5²
y = 45.37 m