Answer:
25 meters
Explanation:
1 sec is 2.5, 1x10 so 2.5x10=25
Initial velocity (Vi) = 25 m/s
acceleration (a) = ![-4 m/s^{2}](https://tex.z-dn.net/?f=-4%20m%2Fs%5E%7B2%7D)
time interval (t) = 5 sec
let us assume that final velocity after 5 sec be Vf
As acceleration is constant, we can apply the the equation of motion with constant acceleration i.e. ![V_{f} = V_{i} + at](https://tex.z-dn.net/?f=V_%7Bf%7D%20%3D%20V_%7Bi%7D%20%2B%20at)
Hence, ![V_{f} = 25 +(-4)(5) = 25 -20 = 5 m/s](https://tex.z-dn.net/?f=V_%7Bf%7D%20%3D%2025%20%2B%28-4%29%285%29%20%3D%2025%20-20%20%3D%205%20m%2Fs)
so, the velocity of bicyclist will be 5 m/s after 5 sec
Answer:
dumpster mass
Explanation:
you will need the mass of the dumpster to calculate using conservation of momentum
Answer:
C. Alpha
Explanation:
Gamma radiation, unlike alpha or beta, does not consist of any particles, instead consisting of a photon of energy being emitted from an unstable nucleus. Having no mass or charge, gamma radiation can travel much farther through air than alpha or beta, losing (on average) half its energy for every 500 feet.
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