Download presentation

Presentation is loading. Please wait.

1
**Physics Quicky A Stone Thrown Downward**

A boy on a bridge throws a stone vertically downward with an initial velocity of 14.7 m/s toward the river below. If the stone hits the water 2.00 s later, what is the height of the bridge above the water?

2
Kinematic Practice Physics September 16, 2008

3
**1. How far does a bicyclist travel, if he has been riding for 20 seconds at 4 m/s?**

4
**2. If a car travels 240 meters in 60 seconds, what was its average speed?**

5
3. A car traveling initially at 12 m/s accelerates at 5 m/s2 for 8 seconds. What is its new velocity?

6
**4. How much time does it take an eagle to travel 420 meters, moving at a rate of 6 m/s?**

7
5. An object initially moving with a velocity of 5 m/s is speeds up at a rate of 6 m/s2 for 2 s. What is the total distance traveled?

8
6. A racecar with an initial velocity of 20 m/s decelerates at a rate of 2 m/s2 for 4 seconds. What is its new velocity?

9
7. A racecar with an initial velocity of 20 m/s decelerates at a rate of 2 m/s2 for 4 seconds. How far has it traveled?

10
8. A car initially moving at 12 m/s increases its velocity to 36 m/s in 6 seconds. What is the car’s acceleration?

11
**9. A student drops an apple from a building 20 meters high**

9. A student drops an apple from a building 20 meters high. How long does it take to hit the ground?

12
10. How far does a train with an initial velocity of 45 m/s travel when accelerating at 4 m/s2 for 10 s?

13
**11. A car traveling at 8 m/s accelerates at 2 m/s2 for 3 seconds**

11. A car traveling at 8 m/s accelerates at 2 m/s2 for 3 seconds. What is its new velocity?

14
**12. A horse traveling with a velocity of 20 m/s decelerates at 5 m/s2 until it comes to a rest.**

How far did it travel ?

15
**13. A ball is thrown upward with an initial velocity of 30 m/s**

13. A ball is thrown upward with an initial velocity of 30 m/s. Where is the ball after 4 seconds?

16
**14. A boat moving at a speed of 6 m/s accelerates at 3 m/s2**

14. A boat moving at a speed of 6 m/s accelerates at 3 m/s2. How fast will the car be moving after it has accelerated for 45 m?

17
15. A ball is rolling with an initial velocity of 24 m/s and slows to a velocity of 4 m/s in 5 seconds. What is its acceleration?

18
**16. How long does it take a car to accelerate from 2 m/s to 10 m/s with an acceleration of 4 m/s2?**

19
17. A moving car slows down at 3 m/s2 for 4 seconds until it reaches a stop. What was its initial velocity?

20
18. A ball is thrown downward at an initial velocity of 6 m/s from a bridge. How far does the stone travel in 3 seconds?

21
**19. How long does it take a car to slow down from 45 m/s to 25 m/s decelerating at 5 m/s2?**

22
**20. A car traveling initially at 8 m/s accelerates at a rate of 4 m/s2 for 2 s.**

What is the car’s velocity at that time? The car then blows a tire, slows and comes to a halt, decelerating at 8 m/s2. How long did it take to stop?

23
**PROJECTILE (2-D) MOTION.**

* A ball is thrown from a height of 25.0 m above the ground with an initial horizontal velocity of 8.25 m/s. How long is the ball in flight before striking the ground? How far from the building does the ball strike the ground? Next Lecture: PROJECTILE (2-D) MOTION.

24
**Physics Homework 9/17 Read Chapter 2 Conceptual Physics (Hewitt)**

Do Problems 22, 23, 26, 27, 30, 33, 41, 43, 44, 48 DO RIGHT NOW… In Wilson Chapter 2 (37, 41, 63, 87,107)

Similar presentations

OK

Defining the important variables Kinematics is a way of describing the motion of objects without describing the causes. You can describe an object’s motion:

Defining the important variables Kinematics is a way of describing the motion of objects without describing the causes. You can describe an object’s motion:

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on cross docking technique Ppt on materials metals and nonmetals Ppt on waves tides and ocean currents activity Ppt on wagon repair shop Ppt on synthesis and degradation of purines and pyrimidines are what Ppt on bond length definition Ppt on indian politics jokes Ppt on indian stock market basics Ppt on save environment images Ppt on solid state drives