Question

Please help
problems 2a.,2b.,3a.,and 3b.​

Answer 1

2a) x = 32 [mil/h]; 2b) t = 0.5[h]; 3a) t = 2.5 [h]; 3b) x = 185[mil]

Step-by-step explanation:

2a)

We can solve this problem by using the kinematics equation, which relates speed to time and displacement.

`v=(x)/(t) \\v=velocity [(mil)/(h) ] = 32 [(mil)/(h)] \\t=time = 1 [h]\\x=v*t\\x=32[(mil)/(h) ]*1[h]\\x=32[mil}`

2b)

We can solve this problem by using the kinematics equation, which relates speed to time and displacement.

`v=(x)/(t) \\t=(x)/(v) \\t=(420)/(840)\\ t=0.5[h]`

3a)

We can solve this problem by using the kinematics equation, which relates speed to time and displacement.

`v=(x)/(t) \\t=(x)/(v) \\t=(35)/(14)\\ t=2.5[h]`

3b)

We can solve this problem by using the kinematics equation, which relates speed to time and displacement.

`v=(x)/(t) \\v=velocity [(mil)/(h) ] = 74 [(mil)/(h)] \\t=time = 2.5 [h]\\x=v*t\\x=74[(mil)/(h) ]*2.5[h]\\x=185[mil}`