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padilas [110]
3 years ago
14

John rides his motorcycle with a constant speed of 40 miles per hour. How far can he travel in 1/2 an hour?

Physics
1 answer:
Nuetrik [128]3 years ago
5 0
The answer would be 60 miles.
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A graph is provided below. The graph shows the speed of a car traveling
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Accelerating

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2 years ago
I need help with part D
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3 years ago
A silver bar 0.125 meter long is subjected to a temperature change from 200 C to 100 C . What will be the length of the bar afte
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\Delta L= \alpha L_0 (T_f-T_i)

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8 0
3 years ago
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An electron is pushed into an electric field where it acquires a 1-v electrical potential. suppose instead that two electrons ar
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1V electrical potential 
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A toy rocket launcher can project a toy rocket at a speed as high as 35.0 m/s.
Anestetic [448]

Answer:

(a) 62.5 m

(b) 7.14 s

Explanation:

initial speed, u = 35 m/s

g = 9.8 m/s^2

(a) Let the rocket raises upto height h and at maximum height the speed is zero.

Use third equation of motion

v^{2}=u^{2}+2as

0^{2}=35^{2}- 2 \times 9.8 \times h

h = 62.5 m

Thus, the rocket goes upto a height of 62.5 m.

(b) Let the rocket takes time t to reach to maximum height.

By use of first equation of motion

v = u + at

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t = 3.57 s

The total time spent by the rocket in air = 2 t = 2 x 3.57 = 7.14 second.

8 0
3 years ago
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