A dynamite blast at a quarry launches a rock straight upward

Assignment Help Physics
Reference no: EM13555299

A dynamite blast at a quarry launches a rock straight upward, and2.5 s later it is rising at a rate of 18 m/s. Assuming airresistance has no effect on the rock, calculate its speed(a) at launch and (b)5.3 s afterlaunch

Reference no: EM13555299

Reviews

Write a Review

 

Physics Questions & Answers

  Origin of anxy coordinate system

A particle of charge Q is fixed at the origin of anxy coordinate system. At t = 0 a particle(m = 0.776 g, q = 5.04 µC is located on thex axis at x = 18.7 cm, moving with a speed of39.8 m/s in the positive y direction.

  Electric field intensity

Standard mathematical constants and symbols (e.g. pi), you may only use the symbols shown in the figure and question description - Which of the following plots correctly represents the electric field intensit

  Find how far apart are the half-kilogram marks on the scale

Fish are hung on a spring scale to determine their mass (most fishermen feel no obligation to report the mass truthfully). How far apart are the half-kilogram marks on the scale

  Determine the percent of the work is lost to friction

A 4.3- kg box of books is pulled up a 4.76- m-long inclined plank to a height of 1.4 m. What percent of the work is lost to friction

  How to compute the density of the oil

A major-league catcher gloves a 93 mi/h pitch and brings it to rest in 0.14m. If the force exerted by catcher is 803 N, what is the mass of the ball.

  Find the displacement of car from the point of origin

Two runners of mass 70kg and 60kg, respectively, have a total linear momentum of 350 kg•m/s. The heavier runner is running at 2.0 m/s. Determine the likely speeds of the lighter runner.

  In what direction do the electrons travel

If a current of 80.0 mA exists in a metal wire, In what direction do the electrons travel with respect to the current

  Estimate the velocity of the second ball after collision

A billiard ball A moving at 5.00m/s hits another ball B, initially at rest, of the same mass. Find the velocity (magnitude and direction) of the second ball after the collision

  How much total mechanical energy was lost in the fall

A 12 gram ball is dropped form a height of 2.50m and is moving and is moving at 3.2m/s just before it hits the floor. how much total mechanical energy was lost in the fall

  Find the energy density in the electric field near surface

A charged isolated metal sphere of diameter 26.0 cm has a potential of 8400 V relative to V = 0 at infinity. Calculate the energy density in the electric field near the surface of the sphere

  What is the wave length of this new light

A single slit forms a diffraction pattern, with the first minimum at an angle of 40.00 (degree) from central maximum, What is the wave length of this new light

  How much gasoline is burned during each cycle

A gasoline engine in a large car takes in 10,500J of heat and delivers 2450J of mechanical work per heat cycle. How much gasoline is burned during each cycle

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd