What is the distance between the two traps

Reference no: EM13486716

A double speed trap is set up on a freeway. One police car is hidden behind a billboard, and the other is some distance away under a bridge. As a speeder passes by the first trap, its speed is measured to be 105.9 mph. At this moment, the driver noticed the first trap and he slows the car down gradually without stepping on the brakes. His acceleration is constant. Exactly 7.05s later, the driver passes the second trap. Now his speed is measured to be only 67.1 mph.
(a) Draw a sketch of the situation, representing the positions of the driver, his velocity and acceleration at the locations of the traps.
(b) Calculate his acceleration.
(c) What is the distance between the two traps?
(d)Draw a a to scale position graph, velocity-time, and acceleration vector-time graph for the given time interval. Use 1mile=1.609 x 10^3.

Reference no: EM13486716

Questions Cloud

Determine angle do the poles make with the vertical : Two identical uniform poles of mass 50 kg and linear mass density 15 kg/m are supported by pivots 2 m apart on level ground. what angle do the poles make with the vertical

The plane pilot weighs : A ?ghter plane ?ying at constant speed 420 m/s and constant altitude 10000 m makes a turn of curvature radius 2800 m. On the ground, the plane's pilot weighs (62 kg)(9.8 m/s2) = 607.6 N. W

How much power is in the secondary circuit : A (perfect) transformer has 20 V and 2 A in its primary coil, 200 turns in its primary circuit, and 20 in its second. How much power is in the secondary circuit

Find the amplitude of the emf induced in the loop : A small loop of area A=7.4 mm^2 is inside a long solenoid that has n=747 turns/cm, find the amplitude of the emf induced in the loop

What is the distance between the two traps : What is the distance between the two traps?

What is the angular amplitude of the subsequent motion : A "torsional pendulum" comprises a uniform vertical quartz fiber attached to the top of a uniform solid sphere of mass m = 2 kg and radius r = 0.1m. what is the angular amplitude of the subsequent motion

How many minutes of mixing machine time required : How many minutes of mixing machine time would be required to satisfy demand for all three products?

Evaluate the total mass of the protons and electrons : Calculate the total mass of the protons and electrons in 19/9F. Use 1.007825 amu as the mass of 1/1H(mass of a proton and an electron). Express your answer in atomic mass units to 6 significant figures

What is the average orbital velocity of the earth : The Earth orbits about the sun once every 365 days. The distance between the earth and the sun is 1.5x10^11 m. What is the average orbital velocity of the earth

User Account

All Pages