While entering a freeway, a car accelerates from rest at a rate of 2.40 m/s 2 for 12.0 s. (a) Draw a sketch of the situation. (b) List the knowns in this problem. (c) How far does the car travel in those 12.0 s? To solve this part, first indentify the unknown, then indicate how you chose the appropriate equation to solve for it. After choosing the equation, show your steps in solving for the unknown, check your units, and discuss whether the answer is reasonable. (d) What is the car’s final velocity? Solve for this unknown in the same manner as in (c), showing all steps explicitly.
While entering a freeway, a car accelerates from rest at a rate of 2.40 m/s 2 for 12.0 s. (a) Draw a sketch of the situation. (b) List the knowns in this problem. (c) How far does the car travel in those 12.0 s? To solve this part, first indentify the unknown, then indicate how you chose the appropriate equation to solve for it. After choosing the equation, show your steps in solving for the unknown, check your units, and discuss whether the answer is reasonable. (d) What is the car’s final velocity? Solve for this unknown in the same manner as in (c), showing all steps explicitly.
While entering a freeway, a car accelerates from rest at a rate of
2.40
m/s
2
for 12.0 s. (a) Draw a sketch of the situation. (b) List the knowns in this problem. (c) How far does the car travel in those 12.0 s? To solve this part, first indentify the unknown, then indicate how you chose the appropriate equation to solve for it. After choosing the equation, show your steps in solving for the unknown, check your units, and discuss whether the answer is reasonable. (d) What is the car’s final velocity? Solve for this unknown in the same manner as in (c), showing all steps explicitly.
A ball is tossed vertically from the top of a building that is 96 stories tall (approximately 864 ft) with an initial velocity of 30 ft/sec. The initial acceleration is given by a=−32 ft/sec2.
1. Write the velocity equation with t as the variable and v as velocity.
2. Write the displacement equation with t as the variable and s as the displacement.
3. Find the velocity at 2 seconds.
______ ft/s
4. Find the height above the ground at 2 seconds.
______ft
While entering a freeway, a car accelerates from rest at a rate of 2.40 m/s for 12.0 s. (a) Draw a sketch of the situation. (b) List the knowns in this problem. (c) How far does the car travel in those 12.0 s? To solve this part, first identify the unknown, and then discuss how you chose the appropriate equation to solve for it. After choosing the equation, show your steps in solving for the unknown, check your units, and discuss whether the answer is reasonable. (d) What is the car’s final velocity? Solve for this unknown in the same manner as in part (c), showing all steps explicitly.
Direction: Solve what is required in each of the following problems. Show a step by step process in finding the solution of the problem.
An airplane accelerates down a runway at 3.20 m/s2 for 38 s until is finally lifts off the ground. Determine the distance traveled before takeoff.
Upton Chuck is riding the Giant Drop at Great America. If Upton free falls for 2.80 seconds, what will be his final velocity and how far will he fall?
A car begins driving from a stationary position. It accelerates at 5 m/s2 for 15 seconds, then travels at a steady speed for another 10 seconds, all in the same direction. How much distance has it covered since it started driving?
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