chameleons
Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. In a typical strike, the chameleon's tongue accelerates at a remarkable 280 for 20, then travels at constant speed for another 30.
Homework Answers
Its velocity at the end of 0.02 s is at = 210*0.02 = 4.2 m/s.
Distance traveled during this time is average velocity * time = 2.1*0.02 = 0.042m.
Distance traveled with this speed of 4.2m/s for another 0.03 s is 4.2*0.03 = 0.126m
The total distance = 0.042+0.126=0.168m
Distance traveled during this time is average velocity * time = 2.1*0.02 = 0.042m.
Distance traveled with this speed of 4.2m/s for another 0.03 s is 5.6*0.03 = 0.168m
total disstance = 0.042+0.168=0.21m
The first part is at constant acceleration starting from rest. d = (1/2)at^2. t is 0.02 seconds and a is given. Calculate that distance in meters.
The second part is at constant velocity, d = vt, with t = 0.03 seconds, and v is given. Calculate that distance in meters.
Add them up.
Chameleons catch insects with their tongues, which they can rapidly extend to great lengths
Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. In a typical strike, the chameleon's tongue accelerates at a remarkable 230 m / s2 for 20 ms, then travels at constant speed for another 30 ms
Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. In a...
Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. In a typical strike, the chameleon's tongue accelerates at a remarkable 210 m/s2 for 20 ms , then travels at constant speed for another 30 ms . Part A During this total time of 50 ms , 1/20 of a second, how far does the tongue reach? Express your answer to two significant figures and include the appropriate units.
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Write down relevant equations, draw diagrams and show all of your work for full credit. 1. (20 points) A car starting from rest travels 220 m in 9.4 seconds with a constant acceleration. It then travels at a constant speed for another 12 seconds. After that, the brakes are applied and the car comes to rest an acceleration of 6.5 m/s2. A) Draw the motion diagram for the entire trip. B) What direction is...
Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. In a typical strike, the chameleon's tongue accelerates at a remarkable 230 m / s2 for 20 ms, then travels at constant speed for another 30 ms
2) A motorist travels with a constant speed of 30 m/s for 15s. He then accelerates at 3 m/s? for 8 s to reach his desired top speed. He drives at this top speed for 21s and then takes another 18 s to bring the car to a stop. Calculate the average speed for the entire period. 35.4 m/s 32.0m/s 37.1 m/s 33.7 m/s 38.3 m/s
Name: Date: Problems: 1. The dimensions of a reservoir are as follows: 2-m long, 3-m wide & 4-m high. a) What is the area of the reservoir? b) What is the volume of the reservoir? c) How many gallons of water the reservoir can hold? (Hint: 1 cubic decimeter = 1 liter & 1 gallon = 3.786 liters) 2. A cube has a certain volume. If the dimension of each side is tripled, by what factor will the volume increase?...
Help Please
At a stop light, a truck travelling at 15 m/s passes a car as it starts from rest. The truck travels as constant velocity and the car accelerates at 3 m/s^2. How much time does the car take to catch up to the truck? a. 25 s b. 20 s c. 15 s d. 10 s e. 5 s Starting at time t = 0, an object moves along a straight line. Its coordinate in meters is given...
Item 3 Light-rail passenger trains that provide transportation within and between cities speed up and slow down with a nearly constant (and quite modest) acceleration. A train travels through a congested part of town at 4.0 m/s. Once free of this area, it speeds up to 13 m/s in 8.0 s. At the edge of town, the driver again accelerates, with the same acceleration, for another 16 s to reach a higher cruising speed. Learning Goal: To practice Problem-Solving Strategy...
can
someone help me solve this?
Write down relevant equations, draw diagrams and show all of your work for full credit. 1. (20 points) A car starting from rest travels 220 m in 9.4 seconds with a constant acceleration. It then travels at a constant speed for another 12 seconds. After that, the brakes are applied and the car comes to rest an acceleration of 6.5 m/s2. A) Draw the motion diagram for the entire trip. B) What direction is...
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