Answer:
Maximum acceleration will be equal to 
Explanation:
We have given coefficient of kinetic friction 
And coefficient of static friction 
Acceleration due to gravity 
When truck moves maximum force will be equal to 
It is given that half of the weight is supported by its drive wheels
So force required 
From newtons law maximum acceleration will be equal to 
Answer:
Hands rubbed together to become warm
Answer: 83.8 m/s
Explanation:
momentum of shell = momentum of cannon
M(s) × V(s) = M(c) × V(c)
M(s) = mass of shell, V(s) = velocity of shell
M(c) = mass of cannon, V(c) = velocity of cannon
100kg × 75m/s = 90kg × V(c)
7500 = 90 × V(c)
7500 ÷ 90 = V(c)
83.3 = V(c)
Answer:
The bicyclist's acceleration is 2.2m/s^2
Explanation:
Given
---- Initial Velocity
---- Final Velocity
---- Time
Required
Determine the acceleration
This will be solved using the first equation of motion
Substitute values for v, u and a
Collect Like Terms
Solve for a
---- (approximated)
<em>Hence, the bicyclist's acceleration is 2.2m/s^2</em>
Answer:
The true statements are;
a.The decrease in the amplitude of an oscillation caused by dissipative forces is called damping
b.An oscillation that is maintained by a driving force is called forced oscillation
Explanation:
To answer the question, we analyze each of the options as follows;
a.The decrease in the amplitude of an oscillation caused by dissipative forces is called damping.
The above statement is true as damped oscillation is one in which the amplitude is decreased by dissipative forces
b.An oscillation that is maintained by a driving force is called forced oscillation.
When a damped oscillator is allowed to oscillate by itself, it will stop eventually. However when a force is applied to maintain the oscillation the oscillation is then known as a forced oscillation
The above statement is true
c.In a mechanical system, the amplitude of an oscillation diminishes with time unless the lost mechanical energy is replaced.
The above statement is only true in damped oscillation system
d.The increase in amplitude of an oscillation by a driving force is called forced oscillation.
Forced oscillation, as described above, is one the maintains the oscillation of damped oscillator, therefore, the above statement is not correct.
