Mechanics | Relativity Answers

Convert 5.00 cubic feet of water to gallons.

An initially motionless car is accelerated uniformly to 145k/h in 8.13 seconds before striking a deer. The car is in contact with the fawn for 0.755 seconds, after which the car is measured to be traveling at 82.0k/h. What is the magnitude of acceleration of the car before the collision? What is the magnitude of average acceleration of the car during the collision? What is the magnitude of the average acceleration of the car during the entire test, from when the car first begins moving until the collision is over?

a paricle is at q(-12,-5).find the unit vector along oq?

a man weighting 80 kg is standing in a trolly weighting 320 kg. the trolly is resting on frictionless horizontal rails.if man starts walking on the trolly with a speed of 1m/s then after 4 sec his displacement relative to the ground will be

A race car can be slowed with a constant acceleration of -10 m/s2.
(a) If the car is going 43 m/s, how many meters will it travel before it stops?

A jet plane lands with a speed of 96 m/s and can accelerate at a maximum rate of −4.20 m/s2 as it comes to rest.
(a) From the instant the plane touches the runway, what is the minimum time needed before it can come to rest?

A truck covers 40.0 m in 8.20 s while uniformly slowing down to a final velocity of 3.50 m/s.
(a) Find the truck's original speed.
(b) Find its acceleration.

A certain car is capable of accelerating at a rate of 0.53 m/s2. How long does it take for this car to go from a speed of 30 mi/h to a speed of 32 mi/h?

A vehicle of mass 120 kgs is moving with a velocity of 90 km h.What force should be applied on the vehicle to stop it in 5 seconds

a uniform ladder rests against a rough wall so that it makes an angle of 60.0 degrees with the ground. the ladder is 10.0m long and weighs 150N. How far can a 250N man go before the ladder slips? The coefficient of friction between the ladder and the ground is 0.400; between the ladder and the wall is 0.450.