What was the cars average speed through same time interval

Assignment Help Physics

Reference no: EM13677883

A car rolls along the x-axis and its position (in meters) is given by x= 4-6t+2t^2, where t is in seconds

1) What was its displacement through the time interval between t= 0 and t= 3 s?

2) What was the car's average speed through the same time interval?

Hint: the car changed directions.

Reference no: EM13677883

Questions Cloud

How much heat is rejected to the room : An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0 C and rejects heat to a room of temperature 25.0C. Assume that a mass 77.0kg of water at 0.0C is converted to ice at 0.0 C. How much heat is rejected to the room?

What percentage does the inclusion of gravity affect period : A 0.80 g cork ball with a charge of 1.50 µC is suspended vertically on a 0.300 m long light string in the presence of a uniform, downward-directed electric field of magnitude E = 1.00*105 N/C. If the ball is displaced slightly from the vertical, it o..

Consider thin spherical shell of radius-electric field : Consider a thin spherical shell of radius 14.5cm with a total charge of 2.5uC distributed uniformly on its surface. Discover the electric field, in N/C, at a radius of 10.7cm from the center of the charge distribution. Discover the electric field, in..

Woman measures the angle of elevation of a mountain : A woman measures the angle of elevation of a mountain top as 12 degrees. After walking one km closer to the mountain on level ground, she finds the angle to be 14 degrees. Select variable names for the two pictures.

What was the cars average speed through same time interval : A car rolls along the x-axis and its position (in meters) is given by x= 4-6t+2t^2, where t is in seconds. What was its displacement through the time interval between t= 0 and t= 3 s? What was the car's average speed through the same time interval?

Determine what is the electric field strength : The electron gun in a television tube uses a uniform electric field to accelerate electrons from rest to 4.3×107 m/s in a distance of 1.4 cm. Determine what is the electric field strength? (In units N/C)

Determine what is her average speed on the return trip : Julie drives 100 mi to Grandmother's house. On the way to Grandmother's, Julie drives half the distance at 34.0mph and half the distance at 71.0mph.

Determine the change in internal energy of the rod : A 100-kg steel support rod in a building has a length of 2.0 m at a temperature of 20oC. The rod supports a hanging load of 6,000 kg. Determine the work done on the rod as the temperature increases to 40oC. The change in internal energy of the rod.

What is the distance of the fly from the corner of the room : A certain corner of a room is selected as the origin of a rectangular coordinate system. If a fly is crawling on an adjacent wall at a point having coordinates (2.0, 1.0), where the units are meters, what is the distance of the fly from the corner of..

User Account

All Pages