Mechanics | Relativity Answers

A human is approximately 48um in diameter. Express this diameter in meter

Something is mistaken here:
v — is the wave propagation velocity in the medium.
c — is the wave propagation velocity in the medium.

Ball a and b are 20m from ground. Ball a was thrown upwards with a speed of 5m/s. Ball b was thrown at -4m/s. find the maximum height

When startled, an armadillo will leap upward. Suppose it
rises 0.544 m in the first 0.200 s. (a) What is its initial speed as it
leaves the ground? (b) What is its speed at the height of 0.544 m?(c) How much higher does it go?

A tiger leaps with an initial velocity of 55.0 km/h at an angle of 13.0 with respect to the horizontal. What are the components of the tiger’s velocity

At t = 0, one toy car is set rolling on a straight track with initial position 13.5 cm, initial velocity -4.4 cm/s, and constant acceleration 2.80 cm/s2. At the same moment, another toy car is set rolling on an adjacent track with initial position 9.5 cm, initial velocity 5.00 cm/s, and constant zero acceleration.

At what time(s), if any, do the cars pass each other?

What are their locations at that time?

Lean and m who are 150m apart start walking toward each other at 3.0m/s and 5.0m/s respectively. How long will it take for them to meet? Find the corresponding distance travelled by each.

An object is moving under a constant acceleration (never changes at any point). It is initially moving in the +x direction at 9 m/s. After some time the object stops and then starts moving in the -x direction. After a total time of 5 seconds, its average velocity for the entire trip is 2 m/s in the -x direction. How much distance does the object cover in this time in meters?

A particle of mass L=M²X^4/12 +MX²V<x>-V²<x>
Where V is some differentiable function of X. Find the equation of motion for X(t) and describe the physical nature of the system on the basis of this equation