Question

The degree measures of the three angles of A ABC shown in the following figure are (a) ZA = 82°, ZB = 27°, Z C = 71" (b) ZA = 71°, ZB = 27°, Z C = 82 (c) ZA = 27°, ZB = 71°, Z C = 82 (d) ZA = 82°, ZB = 71°, ZC = 27°​

Answer 1

You are being asked to deploy this equation:

force = mass X acceleration, or f = m*a

m = 1000 kg

velocity 45 km/hr = 12.5 m/s so

acceleration a = -2.5 m/s^2 Therefore

f = m*a = 1000 * -2.5 = -2500 newtons