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sandralarisha:
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7) KE (kinetic energy) =mv^2/2
m=2kg v=?
for force= ma
10=2a
a= 5m/s
by
v= u +at
v= 0 + 5×20
v=100m/s
KE = 2×100^2/2
KE= 10000J
Work done = Force× displacement
WD= 10x1000 (by s= ut+at^2/2
WD= 10000J
m=2kg v=?
for force= ma
10=2a
a= 5m/s
by
v= u +at
v= 0 + 5×20
v=100m/s
KE = 2×100^2/2
KE= 10000J
Work done = Force× displacement
WD= 10x1000 (by s= ut+at^2/2
WD= 10000J
Tks
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