Question

A car is traveling at a steady 71 km/h in a 50 km/h zone. A police motorcycle takes off at the instant the car passes it, accelerating at a steady 8.3 m/s2. How much time elapses before the motorcycle is moving as fast as the car? How far is the motorcycle from the car when it reaches this speed?

Answer #1

A car is traveling at a steady 71 km/r in a 50 km/h zone. A
police motorcycle takes off at the instant the car passes it,
accelerating at a steady 7.2 m/s2.
Part A
How much time elapses before the motorcycle is moving as fast as
the car?
Part B
How far is the motorcycle from the car when it reaches this
speed?

A car is traveling at a steady 70 km/hkm/h in a 50 km/hkm/h
zone. A police motorcycle takes off at the instant the car passes
it, accelerating at a steady 8.5 m/s^2 to reach the 70 km/h. How
far is the motorcycle from the car when it reaches this speed?
(Time to catch up to the car= 2.3 seconds)

4.) An unmarked police car, traveling a constant 95 km h , is
passed by a speeder traveling 145 km h . Precisely 1.00 s after the
speeder passes, the policeman steps on the accelerator. If the
police car’s acceleration is 2.00 fracms2 , how much time elapses
after the police car is passed until it overtakes the speeder
(assumed moving at constant speed)?
5.) Assume in Problem 4 that the speeder’s speed is not known.
If the police car...

An unmarked police car traveling a constant 85 km/h is passed by
a speeder. Precisely 2.00 s after the speeder passes, the police
officer steps on the accelerator. If the police car accelerates
uniformly at 3.00 m/s2 and overtakes the speeder after accelerating
for 5.00 s , what was the speeder's speed?

A speeder passes a parked police car with a speed of 65 km/h in
a 50km/h zone. One second after the speeder has passed the police
car, the police begin his pursuit. The police car accelerates with
constant acceleration of 2m/s2
(i) How long does it take for the police to catch the speeding
car?
(ii) How far did the police car travel before police caught up
with the speeder? (iii) What is the speed of the police car when...

A police car, traveling a constant 100 km/h, is passed
by a speeder. Precisely 1.1 s after the speeder passes, the
policeman step on the accelerator. The police car acceleration is 3
m/s2. The policeman overtakes the speeder after 6s, what
was the speeder’s speed?

4.) An unmarked police car, traveling a constant 95 h , is
passed by a speeder traveling 145 h .
Precisely 1.00 s after the speeder passes, the policeman steps
on the accelerator. If the police car’s acceleration is 2.00
fracms2, how much time elapses after the police car is passed until
it overtakes the speeder (assumed moving at constant speed)?
answer: 15.8 seconds
5.) Assume in Problem 4 that the speeder’s speed is not known.
If the police car...

A police car, traveling a constant 100 km/h, is passed by a
speeder. Precisely 1.1 s
after the speeder passes, the policeman step on the accelerator.
The police car
acceleration is 3 m/s 2 . The policeman overtakes the speeder after
6s, what was the
speeder’s speed?

A police car sounding a siren with a frequency of 1600 Hz is
traveling at 115 km/h . What frequencies does an observer standing
next to the road hear as the car approaches and as it recedes? What
frequencies are heard in a car traveling at 90.0 km/h in the
opposite direction before and after passing the police car? The
police car passes a car traveling in the same direction at 80.0
km/h. What two frequencies are heard in this...

A police car sounding a siren with a frequency of 1640 Hz is
traveling at 115 km/h .
What frequencies does an observer standing next to the road hear
as the car approaches and as it recedes?
What frequencies are heard in a car traveling at 90.0 km/hkm/h
in the opposite direction before and after passing the police
car?
The police car passes a car traveling in the same direction at
80.0 km/hkm/h. What two frequencies are heard in this...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 1 minute ago

asked 5 minutes ago

asked 23 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago