Find the initial speed of the rock

Assignment Help Physics
Reference no: EM1315309

Q1. A 0.20 {rm kg} rock is thrown vertically upward from the top of a cliff that is 31.0 {rm m} high. While it hits the ground at the base of the cliff, the rock has the speed of 31 {rm m/s}. Assume that air resistance can be ignored; find the initial speed of the rock.

Q2. A small motor boat is capable of maintaining a 9.00 m/s speed in still water. It attempts to cross a long straight 0.60 km wide river that has a constant 3.60 m/s current.

Reference no: EM1315309

Reviews

Write a Review

 

Physics Questions & Answers

  What is the amplitude of vibration

A 0.50-kg object is attached to an ideal massless spring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.7 m/s at the equilibrium position.

  What is the tension in cables

A 0.27 kg rock is thrown perpendicularly upward from the top of the cliff that is 32 m high. When it hits the ground at the base of cliff, the rock has a speed of 29 m/s. suppose that air resistance can be ignored, find out A) initial speed of the ro..

  What is the horizontal component of the ball velocity

What is the horizontal component of the ball velocity

  Write down the expression that shows the pressure

Write down the expression that shows the pressure

  What is mechanical energy

What is mechanical energy

  Find out the average speed for the trip

Find out the average speed for the trip

  The angular momentum of earth is constant

The  angular momentum of Earth is constant

  The magnitude of electric field inside the tungsten

A large tanker truck can carry 30 ton of liquid. (a) What volume of water can it carry? (b) What volume of gasoline can it carry.

  The magnitude and direction of the electric field

A 2.00-m tall basketball player is standing on the floor 10.0 m from the basket. If he shoots the ball at a 30 degree angle from the horizontal, at what initial speed must he throw the ball so that it goes through the basket without striking the back..

  How much time does the roast beef spend

A 70kg man walks out on a 10kg beam that rests on, but is not attached to, two supports. When beam just starts to tip, what is the force exerted on the beam by the right support.

  What tension is necessary to tune string properly

What tension is necessary to tune string properly

  What is the initial total mechanical energy of projectile

A box with a mass of 8 kg is lifted (without acceleration) through a height of 9 m, in order to place it upon the shelf of the closet.

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