We read your photo as:

An object undergoes constant acceleration after starting from rest and then travels 5 m in the first second. Determine how far it will go in the next second.

Physics

ScanSolve AI Answer

Answers

5 parts
1

100 km/h

2

900 km

3

B

4

D

5

100 m/s

Step-by-step solution

6 steps

  1. Formula for average speed vavg=total distancetotal timev_\text{avg} = \dfrac{\text{total distance}}{\text{total time}}.

    Total distance s=50s = 50 km.

    Total time t=30t = 30 min =3060= \dfrac{30}{60} h =0.5= 0.5 h.

    Substitute: vavg=500.5v_\text{avg} = \dfrac{50}{0.5} km/h.

    Simplify: vavg=100v_\text{avg} = 100 km/h.

    100 km/h


  2. The aircraft flies in a straight line due north, so magnitude of displacement equals distance traveled.

    Magnitude of displacement =900= 900 km.

    900 km


  3. For two cars accelerating along the same road, if the situation implies the distance between them is constant (as context suggests), they must have the same acceleration.

    B implies that the two cars have the same acceleration ("rate").

    B


  4. Object accelerates at a=2a = 2 m/s2^2 for t1=5t_1 = 5 s (assume from rest).

    Velocity after 5 s: v=at1=2×5=10v = at_1 = 2 \times 5 = 10 m/s.

  5. "Then travels 5" is ambiguous—does not specify if acceleration continues, stops, or time/distance for next phase.

    Cannot determine distance without more info.

    D


  6. Arrow projected vertically upward at initial speed u=100u = 100 m/s, air resistance ignored (gg downward).

    At return to ground (same level), by symmetry of motion or conservation of energy, speed v=uv = u.

    v2=u2+2as,v^2 = u^2 + 2as, where s=0s=0 net displacement vertically, so v=u=100v = u = 100 m/s.

    100 m/s

Was this helpful?

Try one yourself

A new problem that tests the same skill.

Still stuck on this one?

Ask a follow-up, and the answer starts from this question.

Got a different question?Ask your own question