Walk then run compute your average velocity in the following two cases you walk for 1.21 min at a speed of 1.22 m/s and then run for 1.21 min at 3.05 m/s along a straight track.

2.135 m/s

Explanation:

T₁ = Time taken for first walk = 1.21 min = 1.21×60 = 72.6 s

V₁ = Velocity for first walk = 1.22 m/s

T₂ = Time taken for second walk = 1.21 min = 1.21×60 = 72.6 s

V₂ = Velocity for second walk = 3.05 m/s

Displacement travelled in first walk

S₁ = V₁×T₁

⇒S₁ = 1.22×72.6

⇒S₁ = 88.572 m

Displacement travelled in second walk

S₂ = V₂×T₂

⇒S₂ = 3.05×72.6

⇒S₂ = 221.43 m

Total displacement = 88.572+221.43 = 310.002 m

Total time = 72.6+72.6 = 145.2

∴ Average velocity in this case is 2.135 m/s

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.

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