Answer to Question #154017 in Physics for Elona Sijarina

Question

1. The body with mass m = 100kg makes uniform movements. How fast was it in that case? V =?

2. Determine Ek. of water with volume V = 3m3, if it moves with speed v = 72km / h.

3. A bucket of water with volume V = 5l is taken out of the well where approximately the work is done of A = 450J. How low is the water surface of the well? (For acceleration take g = 10 m / s2)

4. What impression does the iron cube with ribs a = 4cm make on the table? P =?

5. How fast does the body fall to the ground if after time t = 10s it hits the surface of Earth?

6. The cart is released across the sloping plane. In the table are presented corrosion speed at certain moments of time. How much the rush of the cart? t (s) = 0, 1, 2, 3 v (m / s) = 0, 1.6, 3.2, 4.8

Answer 1

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