A 28-ton truck changes its speed over 200 s from 36 km/h to 54 km/h. Determine the force exerted by it.
On a body of 200 kg, a force is exerted 400 N. Calculate the acceleration acquired by the body and use this to, assuming the object begins at rest, how fast will be travelling(in m/s) after 10 s?(Type only the number e.g. 15)
Which units could be used for pressure? (Write down the formula first to help)
What is the pressure produced by a force of 25000 N acting on an area of 5 m2.
Match the following conversions
A. 1 cm2
B. 1 m2
C. 1 dm2
D. 1000 dm3
E. 1000 mm3
F. 0.5 m3
Determine the surface, in m2, of the base of a monument of 30 tonnes if the pressure exerted on its base is 25 N/cm2. (g=10 m/s2)
Calculate the pressure of a monument of 30 tonnes if its base is a rectangle measuring 20 cm long and 1.5 m wide. (g = 10 m / s2)
When talking about pressure that is felt by an object underwater we use the term "hydrostatic". To calculate this pressure we use the equation: p = __ · __ · __Write the 3 letters used below without spaces between them.
Calculate the pressure in the S.I units, which a diver feels when they are 5 m deep. Density of seawater is 1.1 g / cm3. (g=10 m/s2)
A child gets into a pool, dislodging water weighing 600 N.What mass is the boy assuming he is only just floating in the water? (Use g=9.8)
A steel ball of radius 5 cm is immersed in pure water. Calculate the thrust of the water and the weight of the ball (density of steel = 7.9 g / cm3). Vsphere = (4/3)·r3