Answer:

Use the formula F = ma

Step-by-step explanation:

A. What is the mass of an object moving at 5m/s² when exerting 120N?

G. F= 120N a= 5m/s2

R- Mass

E-

S-

120N or 120kg • m/s^2 divide by 5 m/s^2 is equals to 24kg

Cancel m/s^2 for units hehez

A- 24kg

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B. Find the force exerted by a driver whose mass is 210 kg accelerating at 600m/s²

G- M is 120 kg; Acceleration 600m/s^2

R- Force

E- F= m • a

S- F = 120kg • 600m/s^2 = 72000kg • m/s^2

A- F is 72000kg • m/s^2 or 72000N

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C. What is the acceleration of a 2.2 kg metal ball when you exert a force of 85N?

G- mass = 2.2 kg

Force = 85 N

R- Acceleration

E-

S-

85N or 85kg • m/s^2 divide by 2.2kg is equals to 38.64m/s^2 (rounded from 38.63636364)

Cancel kg for units

A- 38.64m/s^2