uniformly accelerated motion

uniform accelerated motion

Objectives

• define acceleration

• describe kinematics relationship using equation

• solve problems involving one dimensional motion with constant acceleration

What motion graph is shown in the image?

• non-uniform motion

• gradually speeding up motion

What motion graph is shown in this graph?

• uniform motion

• constant speed

What motion graph is shown in this hraph?

• constant velocity

• zero acceleration

What motion graph is this?

• increasing velocity

• uniformly accelerated motion

What is uniformly accelerated motion?

• motion of a particle along a straight line at a constant acceleration

Multiple Choice

At the bottom of a hill, a car has an initial velocity of +16.0 meters per second. The car is uniformly accelerated at -2.20 meters per

second squared for 5.00 seconds as it moves up the hill. How far does the car travel during this 5.00-second interval?

• 107 m

• 74.5 m

• 52.5 m

• 25.0 m

Multiple Choice

While taking off from an aircraft carrier, a jet starting from rest accelerates uniformly to a final speed of 40. meters per second on a runway that is 70. meters long. What is the magnitude of the acceleration of the jet?

• 0.29 m/s²

• 0.57 m/s²

• 1.8 m/s²

• 11 m/s²

Multiple Choice

A train that is moving at 25 m/s slows down at at a rate of 3 m/s² in 4 seconds. How far does it travel while braking?

• 124 m

• 76 m

• 106 m

• 94 m

Multiple Choice

A car initially moving at 10 m/s speeds up to 60 m/s at a rate of 5 m/s each second. How far does it travel while speeding up?

• 10 m

• 35 m

• 300 m

• 350 m

Multiple Choice

A box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest. Find the acceleration.

• 30 m/s

• 24 m/s²

• 9 m/s²

• 81 km/hr

A car traveling along a straight road at 10 m/s accelerates to a speed of 30 m/s in 8.0s.

• (a) its acceleration

• (b) the distance traveled during this period

• (c) its equation of motion

• (d) the interval of validity of this equation

• (e) the distance traveled at t = 4.0 s