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If a ball is dropped from 6m above the ground, how long does it take to hit the floor and what is its speed at impact (assuming air resistance is negligible)?

Distance, s = 6m ; initial speed, u = 0 m/s ; final speed, v = v m/s ; acceleration, a = 9.8 m/s (g) ; time, t = t sTime:s = ut + 0.5at² , 6 = 0 + (0.5 x 9.8)t² , 6 = 4.9t²

Answered by Rebecca R. • Maths tutor

4490 Views

Discuss the nature and impacts of one or more volcanic events that you have studied.

In 1991, Mount Pinatubo in the Philippines erupted with huge explosivity, due to a large build up of gas in the magma chamber in the lead up to the eruption. A main primary hazard was the ejection of a hu...

Answered by Rachel P. • Geography tutor

2068 Views

Given ∫4x^3+4e^2x+k intergrated between the bounds of 3 and 0 equals 2(46+e^6). Find k.

Sorry I couldn't write the question properly in the question box. The question should read:Given ∫³₀4x³+4e^2x+k dx = 2(46+e⁶)Find K.Step 1- Intergrate...

Answered by Charlie M. • Maths tutor

6025 Views

How do I compare two sources in an exam answer?

It may seem simple, but the first and most important thing to remember when comparing two sources is not to forget to include some kind of analysis on both of the sources in your answer. Just because one ...

Answered by Elizabeth M. • History tutor

23359 Views

Describe the structure of muscle and how it contracts

Muscle is made of many myofibrils. These contain many myofilaments. Within each myofilaments is a string of sarcomeres. Each sarcomere contains myosin (thick filaments) and actin (thin filaments). Myosin ...

Answered by Luke W. • Biology tutor

2579 Views