Mechanics | Relativity Answers

Why would marches at the end of a long parade following a band be out of step with marches near the ban?

When a cycle moving with force (f)applied on the pedal then what is the resultant force applied on the gear of the cycle and what is the loss of original force i.e force applied on the pedal and the force applied on the gear

A piece of metal of density 7.8x10 ^3 kgm^-2 weight 20n in air calculate the apparent weight of the metal when completely immersed in a liquid of 8.3x10^-2gm^-3 and y=(10ms^-2)

does mass affect how an object speeds up under the pull of gravity
e.g IF two cars one with more mass and and one with less mass are pushed with the same force and the air resistance is also same on them because the cars are the same kind
which one will speed up more?
and of the two cars which one will reach the ground first if they are thrown from air?

A driver,drives a truck of mass 10 ton at a velocity of 72km/hr sees an obstruction on the road at a distance of 145m.if person at reaction of driver is in 0.8second,find weather accident will took place or not.if the retarding force of brake is 16000n.

An airplane's velocity is doubled .what happens to its momentum ?is the law of conservation of momentum obeyed? Explain.

A car moving along a straight level road has an initial velocity of 16ms^-1. It's deceleration is 2ms^-2. How long does it take for the car to stop?

If a football player kicks a football so that it spends 3.0 seconds in the air and travels 50.0 m, then find the velocity and angle of the kick. (22m/s, 41 degrees) , I need step by step solutions. please

A baseball is thrown at 25 m/sec at an angle of 30 degrees above the horizontal.
a) How far away does the ball land?
b) What is the minimum height reached?

- A football is kicked at an angle 45 degrees above the horizontal. What is its initial speed if it covers 150 ft?

-A golf ball leaves a tee at 60 m/sec. and at an angle of 50 degrees above the horizontal. Find:
a) The total time of flight
b) The maximum height reached
c) The horizontal distance covered.

A football leaves the toe of a painter at 200 ft/sec. and strikes the ground 500 ft. away.
a.) Determine its initial angle of projection
b.) Find the total time of flight
c.) Find the maximum height reached.