Mechanics | Relativity Answers

a. A ball is thrown horizontally at 8 m/s. (a) How fast is it moving 2 s later? In what direction is it moving?
b. An airplane is in level flight at a velocity of 300 miles per hour and an altitude of 5000 ft when it drops a bomb. (a) How long does the bomb take to reach the ground? (b) What will the bomb's velocity be on impact?

I need an illustration and complete solution. Thank you

1. A ball rolls off the edge of a 1.2 m high and strikes the floor at a point 2 m horizontally from the edge of the table. Find the (a) time of its flight (b) its initial horizontal velocity.

How many particles are present in a closed container if the energy it contains is 93978.85 J, and the diatomic oxygen gas is moving at a velocity of 62.38m/s? Use only the whole number for the value of atomic mass unit. Express your answer in proper scientific notation.

Write the vector v=( 1, -2, 5) as a linear combination of the vector e1=( 1, 1, 1), e2= ( 1, 2, 3) and e3=( 2, -1, 1)

show that ( 1, 1, 1), ( 0, 1, 1) and ( 0, 1, -1) generate or spanned R^3

Let v be a vector space over F define a spanning of v.

A 1000kg rocket in space applies 150000000 n of force in the negative direction. A) find the acceleration of the rocket. B) identify the direction of the acceleration

An object be in equilibrium if it is in motion? Explain. (b) What are the necessary conditions for a system to be in static equilibrium

Give an example in which the net force acting on an object is zero and yet the net torque is nonzero (b) Give an example in which the net torque acting on an object is zero and yet the net force is nonze10.