Question

Answer 1-10 for branly all steps

Answer 1

The acceleration, a of the bodies given is the change in velocity with time and is given as follows:

1. a = 1.2 m/s
2. a = 25 km/hr
3. a = 35.3 cm/min
4. a = 7.125 km/min
5. a = 1.69 m/s
6. a = 108.1 m/hr
7. a = -1.0 cm/s
8. a = 7.89 km/hr
9. a = 1.17 ft/s
10. a = 3.13 km/hr

What is acceleration?

Acceleration is the rate of changeof velocity of an object with time.

• Acceleration, a = change in velocity/time taken

For the given questions, the acceleration are as follow:

1. a = (40 - 10)/25 = 1.2 m/s
2. a = (75 - 30)/1.8 = 25 km/hr
3. a = (90 - 60)/0.85 = 35.3 cm/min
4. a = (77 - 20)/8 = 7.125 km/min
5. a = (37 - 15)/13 = 1.69 m/s
6. a = (40 - 0)/0.37 = 108.1 m/hr
7. a = (13 - 25)/12 = -1.0 cm/s
8. a = (48 - 18)/3.8 = 7.89 km/hr
9. a = (52 - 38)/12 = 1.17 ft/s
10. a = (43 - 17)/8.3 = 3.13 km/hr

Therefore, the acceleration of a body is either positive or negative.

Learn more about acceleration at: https://brainly.com/question/14344386