CALCULATINGENERGY AND PROPERTIES

OF MATTER

W = ?F = 10 Nd = 300 m

W = 3000 Nm

v = ?d = 500 kmt = 20 hr.

v = 25 km/hr.

P = ?W = 50 Nmt = 25 sec.

P = 2 w

a = ?∆v = 30 m/sec.t = 20 sec.

a = 1.5 m/sec./sec.

GPE = ?m = 5 kgh = 10 m

GPE = 500 J (rounded off)

KE = ?m = 100 kgv = 20 m/sec.

KE = 20,000 J

v = 25 m/sec.d = 100 mt = ?

t = 4 sec.

W = 2000 NmF = ?d = 500 m

F = 4 N

a = 60 m/sec./sec.∆v = ?t = 20 sec.

∆v = 1200 m/sec.

W = 500 NmF = 100 Nd = ?

d = 5 m

v = 100 cm/min.d = ?t = 5 min.

d = 20 cm

P = 150 wW = 450 Nmt = ?

t = 3 sec.

GPE = 980 Jm = 10 kgh = ?

h = 10 m

P = 300 wW = ?t = 30 sec.

W = 9000 J

KE = 1000 Jm = ?v = 10 m/sec.

m = 20 kg

a = 25 km/hr./hr.∆v = 75 km/hr.t = ?

t = 3 hr.

GPE = 490m = ?h = 100 m

m = 0.5 kg

KE = 40,000 Jm = 200 kgv = ?

v = 20 m/sec.