7 and 10? 7. If you accelerate from rest 1 m/s each second for an hour,...
A) Starting from rest, you accelerate at 6.0 m/s/s for 5 seconds. You then travel at constant speed for 10 seconds. What is the constant velocity you are moving at after 5 seconds? B) Starting from rest, you accelerate at 6.0 m/s/s for 5 seconds. You then travel at constant speed for 10 seconds. How far did you travel over the 15 seconds?
On a freeway entrance ramp, you accelerate your 1200-kg car from 5 m/s to 25 m/s over 627 m. Having an open lane, you continue to accelerate at the same constant rate for another 500 m. What is your final speed in m/s? Use one decimal place in your answer.
A) On Earth (a = 10 m/s/s) you throw a ball downward from the top of a 75 m cliff. The ball takes 3 seconds to strike the ground. How fast was the ball going when you released it? B) A sports car goes racing down the street and skids to a stop. You measure the length of the skid to be 50 m. This car's brakes give it a 4 m/s/s stopping acceleration. How fast was the car going...
7. The nearest star is 4.1 x 1016 m away. Suppose you had a spaceship that could accelerate from rest at 10 m/s? for half a year, then continues at constant speed. How long would it take to reach the nearest star? Use 1 year 365 days, 24 hours -1 day, 60 minutes 1 hour, 60 seconds 1 minute. も. 15768111 vA: at 2 1.24 16 15 구 68 oooo 8. A roofer on the ground throws a hammer to...
Can you please answer the questions from chapter 3 review problems (pg. 90-91)questions 2,4,8,10,12. chapter 4 review problems 2,4,6,8,10,12,16 (pg121) chapter 5 review problems 2,4,6,12,14 (pg.141).Chapter3-Question2-find the x- and y- components of vector R, which has a length of 10.0 cm at 60 degrees. Question4-Vector R has a length of 9.00cm at 240.0 degrees. Find its x-and y components. Question8-A hiker is plotting his course on a map with a scale of 1.00cm=3.00km. If the hiker walks 2.50 cm north,...
please answer all questions DO 4 Out 01 . Only 4 will be graded. Cross out the one you don't do. +10 C moves at 20 m/s in the LA particle with charge positive r-direction (see diagram). There is a magnetic field of L9 x10 T out of the page. What is the force on the particle? (Give magnitude and direction!) 引0(20) (1 AXIO-3 TO F = 0.38 -regohie in the ydirection The subsequent motion of this particle is a...