shubhamarya7505

A blue car pulls away from a red stop-light
just after it has turned green with a constant
acceleration of 0.4 m/s2. A green car arrives
at the position of the stop-light 6 s after the
light had turned green.
If t = 0 when the light turns green, at what
time does the green car catch the blue car if
the green car maintains the slowest constant
speed necessary to catch up to the blue car?
Answer in units of s.

What is the constant speed of the green car?
Answer in units of m/s.

What is the instantanous speed of the blue
car when the green car catches up to it?
Answer in units of m/s.

A speeder traveling at a constant speed of 132 km/h races past abillboard. A patrol car pursues from rest with constantacceleration of (8.4 km/h)/s until it reaches its maximum speed of186 km/h, which it maintains until it catches up with thespeeder.

(a) How long does it take the patrol car to catch the speeder if itstarts moving just as the speeder passes? (in s)

(b) How far does each car travel? (in km)


A train pulls away from a station with a constant acceleration of0.36 m/s2. A passenger arrives at a point next to the track 6.7 safter the end of the train has passed the very same point. What isthe slowest constant speed at which she can run and still catch thetrain? (in m/s)

A train has a length of 109 m and starts from rest with a constantacceleration at time t = 0 s. At this instant, a car just reachesthe end of the train. The car is moving with a constant velocity.At a time t = 23 s, the car just reaches the front of the train.Ultimately, however, the train pulls ahead of the car, and at timet = 46 s, the car is again at the rear of the train. Find themagnitudes of the following quantities.
(a) the car's velocity
(b) the train's acceleration

A train as a length of 92 meters and starts from rest with aconstant acceleration at time t=0seconds. At this instant, a carjust reaches the end of the train. The car is moving with aconstant velocity. At a time t=14 seconds, the car just reaches thefront of the train. Ultimately, however, the train pulls ahead ofthe car, and at time t=28 seconds, the car is again at the rear ofthe train. Find the magnitudes of a). the cars velocity and b). thetrain's acceleration.
I do not know how to set up the problem. Please explain why eachstep was done that way.

As a train accelerates away from a Station, it reaches a speed of 3.9 m/s in 7.2 seconds. If the train's acceleration is constant, what is it's speed after an additional 4.5 seconds have elapsed?

A) 3.8 m/s

B) 4.2 m/s

C) 5.7 m/s

D) 6.3 m/s

Determine the mass of 6.74% NaF solution that contains 8.37 g of F^-.

Determine the mass of SO2 that contains 4.625 × 1026 S atoms

Suppose a 5.2×1010 kg meteorite struck the Earth at the equatorwith a speed 2.0×104 m/s, as shown in the figure and remainedstuck.

By what factor would this affect the rotational frequency of theEarth (1rev/day)?